- x2go-user - X2Go ListServ

Failed messages during startup & small session menu
by Olaf 20 Dec '21

20 Dec '21

Hi! The start process from the boot menu to the session menu takes an extremely long time, several minutes. The three graphic points in the middle on a black background suddenly become confusing characters, then comes: Starting User Login Management... [ OK ] Finished Hold until boot process finished up. [ OK ] Finished Terminate Plymouth Boot Screen. [FAILED] Failed to start User Login Management. See 'systemctl status systemd-logind.service' for details. [FAILED] Failed to start User Login Management. [FAILED] Failed to start Load Kernel Module drm. [FAILED] Failed to start User Login Management. [FAILED] Failed to start Load Kernel Module drm. [FAILED] Failed to start User Login Management. After that Debian GNU/Linux 11 x2gothinclient tty1 x2gothinclient login: After that ultimately, the session menu appears graphically correct in the upper left corner, but much too small, as if the screen size was not recognized. Or is there somewhere a setting option for the size? If you select a session, the session will be opened correctly in full screen. The termination (shutdown) of the session also takes a lot of time, until the small session menu. What can be the reason? Greetings, Olaf (Tested in the preview window of vmware esxi client and locally with a real client.)

1 0

pxe-boot: unable to locate configuration file
by Olaf 19 Dec '21

19 Dec '21

Hello! I have set up a new server with an Ubuntu offshoot (bodhi). The client reports correct IP / Mask / DHCP IP / Gateway IP from dhcpd.conf when booting via pxe, but then: "PXELINUX 6.04 PXE 20191223 ... Anvin ... Unable to locate configuration file" /etc/dhcpd.conf: next-server 192.168.3.8; filename "/pxelinux.0"; interface ens160; Connecting from another PC with x2go client works. I've been sitting there for hours and can't get any further. Would be great if someone could help me. /etc/default/isc-dhcp-server: INTERFACESv4 = "ens160" /etc/exports: /opt/x2gothinclient/chroot 192.168.3.0/255.255.255.0(ro,async,no_root_squash,no_subtree_check) /srv/tftp/pxelinux.0 => /usr/lib/PXELINUX/pxelinux.0 Greetings, Olaf

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X2Go: The Gathering 2021 AKA "Over 9000!" (2021-12-03 - 2021-12-04) will be an entirely virtual event
by Stefan Baur 01 Dec '21

01 Dec '21

Dear $ALL, As stated in the subject line, X2Go: The Gathering 2021 - AKA "Over 9000!" - will be an entirely virtual event and will take place from Friday afternoon, 2021-12-03, to Sunday afternoon/evening, 2021-12-05. If you're wondering what the “Over 9000!” is about, take a look at <https://en.wikipedia.org/wiki/It%27s_Over_9000!> and at <https://experience.arcgis.com/experience/478220a4c454480e823b17327b2bf1d4>, especially the box titled “COVID-19-Fälle” (active Covid-19 cases), which is way over 9000. Under normal conditions, X2Go: The Gathering would be the annual event where users, admins, and developers (including the i18n volunteers) of X2Go, as well as members from the Arctica project and the orca e.V. nonprofit meet face to face, to discuss current X2Go-related issues, fix open bugs, and have a good time getting to know each other. Sadly, due to the ongoing Covid-19 pandemic, this year's X2Go: The Gathering will have to remain entirely virtual. Due to various reasons, we were unable to schedule the event earlier in the year, where Covid-19 infection numbers were lower and where meeting outside or keeping the windows open all day might have worked, so we're stuck with this late event date, which sadly coincides with the fourth Covid-19 wave here in Germany. This means we will be meeting via Jitsi and we will be live-streaming the event via YouTube. Links to the streams will be posted on <http://wiki.x2go.org/doku.php/events:x2go-gathering-2021> each day before the stream begins. You can join in any time, even on short notice, no sign-up required. We will be updating the Wiki page <http://wiki.x2go.org/doku.php/events:x2go-gathering-2021> as more information becomes available - especially the schedule, which is currently still in the works. We plan to release (at least) three new features for X2Go at or at least shortly after this year's X2Go: The Gathering, namely: - the HTML5 client - server-side X2Go-KDrive support, and - X2Go support in Remmina. The former two are currently already available via nightly builds, but we intend to declare them stable and turn them into a proper release. The latter should become available with the next Remmina release. Also, we intend to present the current state of X2Go-TCE on the Raspberry Pi. If time permits (and the individuals required for this are available for it), we will also attempt to move our bugtracker and git to our own gitlab instance (at least for new bugs). As this year's event is an entirely virtual event, there is not really a need for event sponsorships. However, if you're a company that had planned to sponsor the event, we'd appreciate it if you'd redirect the money to some paid work on X2Go instead. A list of companies/individuals available for this can be found here: <https://wiki.x2go.org/doku.php/doc:professional-support> If you're not sure what to sponsor - while the features already mentioned above are ready to be included in a stable release, they could still use some more love and affection. For example: - The HTML5 and Remmina clients don't support file and printer sharing yet - The HTML5 client also lacks sound support - The HTML5 client only works with KDrive, not "classic" X2Go-NX (to be honest, NX inside HTML5 doesn't really make sense since we are about to release KDrive as stable, but if you feel you have a good reason for it, let us know ...) - Remmina only works with "classic" X2Go-NX, not KDrive, and only on a client that still supports X11 (even though Remmina in general also works on a Wayland-only client) -> KDrive support would require a shared library for KDrive, either written in GTK or with more low level rendering toolskits (e.g. Glib-2.0 and Cairo, etc.). - KDrive probably needs some more work on the Windows (and possibly macOS) Client side. - X2Go-TCE on the Pi, while functional in general, still has some untested areas and is a little rough around the edges. - Also, we have been contacted once again regarding USB forwarding support in X2Go, so anyone interested in co-sponsoring this feature should speak up or at least contact me off-list - maybe we can get a co-sponsoring going, lowering the cost for all parties involved. And of course, you can also make donations, either in general or specifically earmarked for X2Go, via orca e.V. The entire schedule, save for the time and date of the orca e.V. meeting on Sunday, is still in a state of flux. We may move some presentations to a Saturday slot, depending on the availability of the speakers involved. If you would like to present something, please contact me via E-Mail (<mailto:X2Go-ML-1@baur-itcs.de>) and let me know the title of your presentation/talk, the expected duration and the times you would be available. Of course, you can also pre-record your presentation/talk if you want, but you will have to upload it to YouTube yourself and let us know the link (it may be unlisted, but must not be marked "private"). Sincerely, Stefan Baur, "X2Go: The Gathering" event organizer PS: Please heed the "reply-to" when replying, and make sure your reply gets sent only to <mailto:x2go-ml-1@baur-itcs.de>, as this message is sent to multiple X2Go mailing lists at once (and it is likely you are not subscribed to all of them, so your replies would clog up the moderation queue for the others). -- BAUR-ITCS UG (haftungsbeschränkt) Geschäftsführer: Stefan Baur Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364 Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243

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Stop pxe-Server
by Olaf Staubus 01 Dec '21

01 Dec '21

Hello! How can I stop the pxe-server (only the pxe function)? I have installed a new Linux server with x2go and would like to test this parallel to the old Linux x2go server, but the new one does not accept the old pxe server. Since at that time I installed the x2go server and the pxe server together on one, I only want to be able to stop / start the pxe-function of the old one to test the new one. Would be great if someone can help. Greetings, Olaf

1 0

connection failed.
by Ilaria Sani 19 Nov '21

19 Nov '21

Dear All, I am new to X2go and to this emailing list. I have used it successfully for a couple of weeks. Then, once, I got the following error message while attempting login (windows10): Failed to start X2Go Agent session with ID xxxxxxx. X2Go Agent terminated unexpectedly. Aborting session startup. I tried to 1. restart PC 2. unistall-reinstall 3. delete session-recreate session 4. exit putty-re-entering I have no more attempts to do. I have used other clients before, and for one of those this sometimes would happen. What I was doing was to -kill geometry in putty and then re-do one. Is there something similar I can do here? I tried to visualize the Archive of this mailing list but I could not find a way to search previous posts. I am lost. Any help would be highly appreciated. Thanks!!! Ilaria ---------------------------------------------------------------- Ilaria Sani, PhD Research Associate, Vuilleumier Lab Campus Biotech, Chemin de Mines 9, 1202 Geneva, CH Phone: +41 223 790 383

3 6

Unable to start a desktop
by Papoteur 16 Nov '21

16 Nov '21

Hello, I'm trying to repair the packaging of x2go in Mageia. It was functional in Mageia 7, but this is no more the case in Mageia 8 or cauldron (development version). I have tried 2 clients: x2goclient 4.1.2.2 and pyhoca-gui 0.6.1.1 packaged for Mageia 8. For the server, in a virtualbox VM, I tried to install the master version of x2goserver; through make && make install. I had to change the rights to add write credential on /var/lib/x2go and /var/lib/x2go/x2go_session I use also nxagent-3.5.99.25-1.mga8 and nxproxy-3.5.99.25-1.mga8 packaged for Mageia 8. Thus I have linked xgoagent to /usr/lib64/nx/bin/nxagent Using pyhoca, I can establish the session with the VM, either with the main user or with a test user, using password. But when I try to launch the desktop or a single application like Terminal, this fails. In the journal of the server, i get: sshd[96864]: Accepted password for test from 192.168.1.14 port 35740 ssh2 systemd-logind[683]: [🡕] New session c25 of user test. systemd[1]: Started Session c25 of user test. sshd[96864]: pam_unix(sshd:session): session opened for user test by (uid=0) /usr/local/bin/x2gostartagent[97691]: successfully started X2Go Agent session with ID test-93-1636213441_stDLXQt_dp24 sshd[96871]: error: connect_to 127.0.0.1 port 51346: failed. sshd[96871]: error: connect_to 127.0.0.1 port 51346: failed. In the same time, I get: this log on the client side: Info: Proxy running in server mode with pid '2878627'. Session: Starting session at 'Sat Nov 6 16:46:21 2021'. Info: Using errors file '/home/yves/.x2go/S-test-93-1636213441_stDLXQt_dp24/session.err'. Info: Using stats file '/home/yves/.x2go/S-93/stats'. Loop: WARNING! Overriding auxiliary X11 port with new value '1'. Warning: Overriding auxiliary X11 port with new value '1'. Info: Using abstract X11 socket in kernel namespace for accessing DISPLAY=:0. Info: Connecting to remote host '127.0.0.1:51346'. Info: Connected to remote proxy on FD#5. Loop: PANIC! The remote NX proxy closed the connection. Error: The remote NX proxy closed the connection. Loop: PANIC! Failure negotiating the session in stage '7'. Error: Failure negotiating the session in stage '7'. Loop: PANIC! Wrong version or invalid session authentication cookie. Error: Wrong version or invalid session authentication cookie. Session: Terminating session at 'Sat Nov 6 16:46:29 2021'. Session: Session terminated at 'Sat Nov 6 16:46:29 2021'. What surprise me is that the client uses 127.0.0.1 as remote server address. I have tried to open all ports on the server, in case where the firewall would be implied, but without more success. I don't understand what goes wrong and what to do to debug or restore the normal behavior.

5 17

X2Go server on Fedora 35 KDE
by Michael Eager 08 Nov '21

08 Nov '21

When I try to connect to a F35 LXD VM using x2goclient, I get an error "Cannot Exec startkde". This can be fixed by either running "sudo ln -s /usr/bin/startplasma-x11 /usr/bin/startkde" in the VM or changing the command in x2goclient. When a screen is displayed, it is completely black, with an arrow cursor. I've seen a couple bug reports about black screen, but none seem to be relevant. -- Michael Eager

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X2Go on openSUSE
by Peter Keller 08 Nov '21

08 Nov '21

Dear list, The instructions for installing X2Go on openSUSE systems on the wiki page at <https://wiki.x2go.org/doku.php/wiki:repositories:suse> seem very outdated. The X2Go repositories only provide binaries up to openSUSE 15.1. These still worked on 15.2 in my hands, but at the current openSUSE release (15.3) support for Qt4 has been dropped and the X2Go repository binaries will no longer work on this distribution (unless it has been upgraded from 15.2, and the Qt4 libraries retained). The correct location for X2Go on SUSE systems now seems to be https://download.opensuse.org/repositories/X11:/RemoteDesktop:/x2go/<distro-version>/ as mentioned in this forum thread: <https://forums.opensuse.org/showthread.php/555520-x2go-client-shared-librar…>. Perhaps someone with write access to the wiki could update the SUSE page? Regards, P.

1 0

Unable to start a desktop
by Papoteur 06 Nov '21

06 Nov '21

Hello, I'm trying to repair the packaging of x2go in Mageia. It was functional in Mageia 7, but this is no more the case in Mageia 8 or cauldron (development version). I have tried 2 clients: x2goclient 4.1.2.2 and pyhoca-gui 0.6.1.1 packaged for Mageia 8. For the server, in a virtualbox VM, I tried to install the master version of x2goserver; through make && make install. I had to change the rights to add write credential on /var/lib/x2go and /var/lib/x2go/x2go_session I use also nxagent-3.5.99.25-1.mga8 and nxproxy-3.5.99.25-1.mga8 packaged for Mageia 8. Thus I have linked xgoagent to /usr/lib64/nx/bin/nxagent Using pyhoca, I can establish the session with the VM, either with the main user or with a test user, using password. But when I try to launch the desktop or a single application like Terminal, this fails. In the journal of the server, i get: sshd[96864]: Accepted password for test from 192.168.1.14 port 35740 ssh2 systemd-logind[683]: [🡕] New session c25 of user test. systemd[1]: Started Session c25 of user test. sshd[96864]: pam_unix(sshd:session): session opened for user test by (uid=0) /usr/local/bin/x2gostartagent[97691]: successfully started X2Go Agent session with ID test-93-1636213441_stDLXQt_dp24 sshd[96871]: error: connect_to 127.0.0.1 port 51346: failed. sshd[96871]: error: connect_to 127.0.0.1 port 51346: failed. In the same time, I get: this log on the client side: Info: Proxy running in server mode with pid '2878627'. Session: Starting session at 'Sat Nov 6 16:46:21 2021'. Info: Using errors file '/home/yves/.x2go/S-test-93-1636213441_stDLXQt_dp24/session.err'. Info: Using stats file '/home/yves/.x2go/S-93/stats'. Loop: WARNING! Overriding auxiliary X11 port with new value '1'. Warning: Overriding auxiliary X11 port with new value '1'. Info: Using abstract X11 socket in kernel namespace for accessing DISPLAY=:0. Info: Connecting to remote host '127.0.0.1:51346'. Info: Connected to remote proxy on FD#5. Loop: PANIC! The remote NX proxy closed the connection. Error: The remote NX proxy closed the connection. Loop: PANIC! Failure negotiating the session in stage '7'. Error: Failure negotiating the session in stage '7'. Loop: PANIC! Wrong version or invalid session authentication cookie. Error: Wrong version or invalid session authentication cookie. Session: Terminating session at 'Sat Nov 6 16:46:29 2021'. Session: Session terminated at 'Sat Nov 6 16:46:29 2021'. What surprise me is that the client uses 127.0.0.1 as remote server address. I have tried to open all ports on the server, in case where the firewall would be implied, but without more success. I don't understand what goes wrong and what to do to debug or restore the normal behavior.

1 0

X11 fonts
by Michael Eager 04 Nov '21

04 Nov '21

I have been trying to run a legacy Motif application on a Fedora 33 VM, connecting using X2Go. With respect to using X11 core fonts, the Motif app works like the X11 xfontsel application. Connecting to the VM using X2Go, I tried to install the liberation fonts, but was unsuccessful. I installed them system-wide and in a local .fonts directory, but xfontsel did not see them. I updated the font search path to include the liberation fonts directory using "xset -fp", and this appeared to work ("xset q" showed the updated path), running "fc-cache" would list the liberation font directories, but xfontsel did not see the fonts. It appeared that running "fc-cache" reset the font search directory to the default, without the liberation fonts. I found a comment that with X2Go fonts need to be installed on both the client and server. The liberation fonts are on both. When I connect to the VM using "ssh -X" or "vncviewer" I am able to install X11 fonts and xfontsel shows them. (And the legacy Motif application sees them as well.) Can anyone tell me how to install fonts so that applications running under X2Go will see them? -- Michael Eager

1 0

How to reduce fonts size?
by nicolas.x2go＠ecarnot.net 28 Oct '21

28 Oct '21

Hello, Though I read https://www.mail-archive.com/x2go-user@lists.x2go.org/msg03049.html and when using 'Single application' or 'Published applications', and running Thunderbird (91.1.2) from a 4.1.0.3-5 x2go server running on an Ubuntu 21.10, to my XUbuntu 21.10 desktop, whatever setting I'm trying to use about the DPI has absolutely no effect on the fonts size in the published Thunderbird. They are significantly bigger, and don't change either when raising nor lowering the DPI setting. Is this something I could check somewhere in the logs, or does anyone has any advice about it? Thank you. -- Nicolas

1 0

x2goagent segfaulting on client connect
by Eric Shell 25 Oct '21

25 Oct '21

I have a CentOS 7.9 system on which X2Go was previously working perfectly, but which is now broken. It broke after a typical yum update but I am not sure what changed to break things and I would like some help debugging and resolving this issue. I should mention that as part of my troubleshooting I have begun using NVIDIA kmod drivers from the ELRepo instead of ones installed from NVIDIA's .run file. The behavior I'm seeing in every failed connection produces the following log entries. The system has both XFCE and MATE installed and both produce the same output. - Oct 19 10:21:29 c113256 /usr/bin/x2goruncommand: launching session with Xsession-x2go mechanism, using STARTUP="mate-session" Oct 19 10:21:29 c113256 /usr/bin/x2goruncommand: dbus wrapper available as /usr/bin/dbus-run-session Oct 19 10:21:30 c113256 kernel: resource sanity check: requesting [mem 0x000c0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem 0x000c4000-0x000c7fff window] Oct 19 10:21:30 c113256 kernel: caller os_map_kernel_space.part.6+0x95/0xc0 [nvidia] mapping multiple BARs Oct 19 10:21:31 c113256 kernel: x2goagent[58376]: segfault at 48 ip 0000555fbee349ab sp 00007ffe380702a0 error 4 in nxagent[555fbecd6000+439000] Oct 19 10:21:31 c113256 abrt-hook-ccpp: Process 58376 (nxagent) of user 1001 killed by SIGSEGV - dumping core - Interestingly, x2goagent does not segfault if I have the X2Go client run /bin/xclock. The window opens without issue. /bin/firefox fails. /bin/glxgears also fails. Is this related to GL/GLX? How can I obtain more detailed information? Thank you! -- Eric Shell PBSci Technical Staff eshell(a)ucsc.edu 831 459 4919

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screensaver
by richard lucassen 17 Oct '21

17 Oct '21

Hello list, After some minutes of inactivity the x2go session switches to a black screen. I run WindowMaker in a session (custom mode), but there is no active screensaver AFAICS. Is this probably x2go behaviour? R. -- richard lucassen http://contact.xaq.nl/

2 3

Programs opening on wrong xserver
by jake＠jakebriggs.com 17 Oct '21

17 Oct '21

Hi all I'm having an issue where some apps open on the wrong screen. If I'm logged in locally on the physical machine, then log in via x2go, and start some software it opens (or tries to) on the physical display on the locally logged in account. I sshed in and made a new user, then connected via x2go and saw no issues. Has anyone seen behaviour like this before? It's very strange, and didn't happen before I upgraded to Ubuntu 21.10. Jake

2 1

stable version Debian packages
by richard lucassen 16 Oct '21

16 Oct '21

On: http://packages.x2go.org/debian/dists/ The "stable" directory still points to "Buster" but should point to "Bullseye". Same goes for the other (I suppose) symlinks. There should be a new directory for "testing": Bookworm. R. -- richard lucassen http://contact.xaq.nl/

1 0

Win 10 X2Go version 4.1.2.2
by MMcBC 11 Oct '21

11 Oct '21

I'm new to the mailing list and long time user of X2Go on the same HP Notebook. Windows 10. X2go is running over Pulse Secure as the VPN to a Remote Server. When starting X2go on my notebook there is no message other than an Application Event Log Error. Faulting application name: x2goclient.exe, version: 0.0.0.0, time stamp: 0x057066f0 Faulting module name: ntdll.dll, version: 10.0.19041.1202, time stamp: 0xef8beaeb Exception code: 0xc0000005 Fault offset: 0x00087470 Faulting process id: 0x378c Faulting application start time: 0x01d7ba7ea3b2ccb2 Faulting application path: C:\Program Files (x86)\x2goclient\x2goclient.exe Faulting module path: C:\Windows\SYSTEM32\ntdll.dll Report Id: 515a0295-b6ef-4134-804b-6b7f245dda43 I've tried removing and reinstalling X2Go without any change. I had a look for an X2Go Log file or dump that might give me a further lead to follow. I've attached that to the email. I also Had a look at the properties of the ntdll.dll That shows a fresh version - so that may be a pointer. Are there special compatibilities to be aware of ? Would be grateful for suggestions where next to look. Thanks Peter

2 1

Speed up inital x2go connection - takes about 10 sec to connect
by Alexander Baader 05 Oct '21

05 Oct '21

Hi all, I installed the latest x2go windows client (on windows 10) and one x2go server on RHEL 8. I installed all necessary packages from RHEL and EPEL Repos and generally it’s working fine. I use ssh keys for password less authentification. All is currently on the same lan, no wan or something like this. It disabled sound, file sharing, printing and all on the x2go client (serverside all is default) and launch a single application .. firefox. When I click on the x2go Icon to start the connection, the client shows „connecting“ („Verbinde“ on german) and nothing happens inside the details log panel. After about 10 sec. a lot of messages are appearing and firefox starts in about 1 sec. Is there any possibilty to improve the inital connection? If I connect via putty all is fast without any delays. I searched a while the archive and just found this post: https://lists.x2go.org/pipermail/x2go-user/2020-October/006319.html <https://lists.x2go.org/pipermail/x2go-user/2020-October/006319.html> My nxagent is higher then the mentioned version: # dnf list | grep nxagent nxagent.x86_64 3.5.99.26-1.el8 @epel Are there any further possibilties? Thanks a lot! Regards Alex

1 0

Expedite Windows x2go client close on loss of connection?
by James Bowery 23 Sep '21

23 Sep '21

I frequently encounter connection interruptions. Each such interruption results in the x2go client freezing for about a minute before the notification window pops up to ask if I want to terminate the session or not. Upon confirming, it then takes another minute before the x2go window closes. Is there any way grab the x2go client by the scruff of the neck and make it go away the moment I notice it isn't responding to keypresses?

2 2

minimal installation for x2go client
by Luciano Andino 23 Sep '21

23 Sep '21

Hello all! Is there any minimal client installation (hd/usb) with login prompt to a x2goserver? -- Luciano Andino

2 3

desktop sharing: would like to share (groups of) windows
by Jos Huisken 14 Sep '21

14 Sep '21

I'm a new user and trying to share a session on different machines/displays. So, on the server I start a session, say DISPLAY=:50 from a client with a regular 1960x1280 screen. When I move to another machine/display, for instance using a 4K screen, I can share the desktop. I'm getting a 1960x1280 desktop with the windows on :50. That's not really what I want. Instead, I would like to get all :50 windows -without- having a special window for the desktop. Ideally I would like to move the windows :50 independently of the original session. Since, on the 4K screen, I prefer a different placement of windows. Ideally I would like to share a group of windows belonging to one part of the process-tree. Essentially this means that window positions should become client specific. Is something like this possible at all? Please note I'm not subscribed on this mailing list, I will watch the mail-archive now and then. P.S. desktop sharing leaves echoes of a moved window in the desktop, this is a bug I guess

1 0

"keyboard did not appear within 30s after agent startup"?
by James Bowery 12 Sep '21

12 Sep '21

Connection started failing. I'm not seeing the problem in the logs. CLIENT LOG NXPROXY - Version 3.5.0 Copyright (C) 2001, 2010 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '14776'. Session: Starting session at 'Sat Jul 17 23:45:49 2021'. Info: Connecting to remote host 'localhost:32065'. Info: Connection to remote proxy 'localhost:32065' established. Info: Connection with remote proxy completed. Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Warning: Failed to read data from the X auth command. Warning: Generated a fake cookie for X authentication. Info: Using ADSL link parameters 512/24/1/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Forwarding X11 connections to display 'localhost:0'. Session: Session started at 'Sat Jul 17 23:45:53 2021'. Info: Established X server connection. Info: Using shared memory parameters 0/0K. Warning: No data received from remote proxy within 30 seconds. x2go-WARNING-1> English language requested, not loading translator. x2go-WARNING-1> English language requested, not loading translator. SERVER LOG (syslog): Jul 17 23:52:22 ML systemd[1]: Started Session 9 of user jabowery. Jul 17 23:52:27 ML /usr/sbin/x2gocleansessions[1496]: jabowery-51-1626583946_stDXFCE_dp32: state file for this session does not exist: /tmp/.x2go-jabowery/C-jabowery-51-1626583946_stDXFCE_dp32/state (this can be ignored during session startups) Jul 17 23:52:27 ML dbus-daemon[1853]: [session uid=1000 pid=1853] Activating via systemd: service name='org.freedesktop.Tracker1' unit='tracker-store.service' requested by ':1.2' (uid=1000 pid=1844 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Jul 17 23:52:27 ML systemd[1803]: Starting Tracker metadata database store and lookup manager... Jul 17 23:52:27 ML dbus-daemon[1853]: [session uid=1000 pid=1853] Successfully activated service 'org.freedesktop.Tracker1' Jul 17 23:52:27 ML systemd[1803]: Started Tracker metadata database store and lookup manager. Jul 17 23:52:27 ML /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID jabowery-51-1626583946_stDXFCE_dp32 Jul 17 23:52:34 ML /usr/bin/x2goruncommand: launching session with Xsession-x2go mechanism, using STARTUP="xfce4-session" Jul 17 23:52:34 ML /usr/bin/x2goruncommand: dbus wrapper available as /usr/bin/dbus-run-session Jul 17 23:52:35 ML /usr/bin/x2gomountdirs[10480]: successfully mounted jabowery@127.0.0.1:53234/cygdrive/C/Users/jabowery/X2GO~1/S-3D89~1/spool to /tmp/.x2go-jabowery/spool/C-jabowery-51-1626583946_stDXFCE_dp32 Jul 17 23:53:04 ML tracker-store[10388]: OK Jul 17 23:53:04 ML systemd[1803]: tracker-store.service: Succeeded. Jul 17 23:53:04 ML /usr/bin/x2gosetkeyboard: /home/jabowery/.x2go/C-jabowery-51-1626583946_stDXFCE_dp32/keyboard did not appear within 30s after agent startup

2 7

Black screen with Fedora 34 KDE
by Michael Eager 09 Sep '21

09 Sep '21

I've created an LXD container with Fedora 34 and KDE. When I connect using x2go, I initially see a login screen (SDDM, I believe). After I log in, all I see is a black screen. No menu bars, no cursor. There's nothing interesting in the system log, but a .xsession-errors file was generated. There's an XIO error: $ cat .xsession-x2go-fedora34-errors XSession-x2go: X session started for eager at Sat Sep 4 18:59:28 UTC 2021 xsettingsd: Loaded 0 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Created window 0xe00001 on screen 0 with timestamp 2989364519 xsettingsd: Selection _XSETTINGS_S0 is owned by 0x0 xsettingsd: Took ownership of selection _XSETTINGS_S0 xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf xsettingsd: Reloading configuration xsettingsd: Loaded 10 settings from /home/eager/.config/xsettingsd/xsettingsd.conf vmware-user: could not open /proc/fs/vmblock/dev Error: /usr/bin/vmtoolsd must be run inside a virtual machine on a VMware hypervisor product. Failed to rename ‘/home/eager/.abrt/spool’ to ‘/home/eager/.cache/abrt/spool’: No such file or directory Failed to rename ‘/home/eager/.abrt/settings’ to ‘/home/eager/.config/abrt/settings’: No such file or directory SELinux Troubleshooter: Applet requires SELinux be enabled to run akonadi.collectionattributetable OK akonadi.collectionmimetyperelation OK akonadi.collectionpimitemrelation OK akonadi.collectiontable OK akonadi.flagtable OK akonadi.mimetypetable OK akonadi.parttable OK akonadi.parttypetable OK akonadi.pimitemflagrelation OK akonadi.pimitemtable OK akonadi.pimitemtagrelation OK akonadi.relationtable OK akonadi.relationtypetable OK akonadi.resourcetable OK akonadi.schemaversiontable OK akonadi.tagattributetable OK akonadi.tagremoteidresourcerelationtable OK akonadi.tagtable OK akonadi.tagtypetable OK XIO: fatal IO error 2 (No such file or directory) on X server ":50" after 479 requests (478 known processed) with 0 events remaining. Any suggestions? -- Michael Eager

2 8

x2go error after updating from Ubuntu 16.04 to 20.04
by Dr. Tobias Holzmann 09 Sep '21

09 Sep '21

Dear everybody, yesterday I updated a server which is used by my team using x2go. The Linux update (Ubuntu 16.04 to 20.04) went well and everything is up and running. x2go works fine too but opening e.g., graphic user interface programs such as blender, paraview, or salome/freecad. The error for e.g., paraview, is: qt.qpa.xcb: X server does not support XInput 2. And a lot of other error messages. However, locally everything works quite well and hence, it should be related to x2go. Probably a lot of info is missing to get into the problem. In any case, I will provide any information one needs. Thanks in advance for any support/hint. -- Glück Auf | Kind Regard Tobi

2 2

Stop pxe-server
by Olaf Staubus 06 Sep '21

06 Sep '21

Hi, how can I stop the pxe-server? (Only the pxe-function) I’m installing a new one and want to test it. Bye, Olaf

1 0

Re: [X2Go-User] Big problem with keyboard/layout
by webman＠manfbraun.de 06 Sep '21

06 Sep '21

Hello! Many thanks for your reply. I'll try to check that all out in the next days. I thought, "you are pretty sure" wrong and re-testet it immidiately - it is the same for xterm, like I remembered from older tests (to avoid issues with mate-/xfce-/konsole terms). Manfred ----- Original Message ----- From: Ulrich Sibiller [mailto:uli42@gmx.de] To: <webman(a)manfbraun.de> Cc: x2go-user(a)lists.x2go.org Sent: Sun, 5 Sep 2021 21:06:30 +0200 Subject: Re: [X2Go-User] Big problem with keyboard/layout This is most likely because your desktop environment (xfce) is setting the keyboard itself AFTER x2go does. x2go determines the keyboard using this or a similar command and passes the keyboard to the other side where it calls setxkbmap (there's also an option to let x2goagent do all this itself without setxkbmap, see man nxagent; but for this problem it will probably not help). If the desktop environment kicks it AFTER the x2go setting will be gone. You can check by running setxkbmap -query both INSIDE the session and locally. And you can fix it (temporarily) by running INSIDE the session "setxkbmap -model ... - layout ... -rules ... -variant ... -option ..." based on the values from your local setxkbmap. (leave out parameters your setxkbmap -query does not print). You can also run an test session where you just specify xterm as your "desktop environment". I am pretty sure the keyboard will be correct then. Can you confirm? Uli On Sun, Sep 5, 2021 at 7:16 PM <webman(a)manfbraun.de> wrote: > > Hello! > > I hope, I can find some help here. > I started once setting up x2goserver in a LXC container > on a remote host and this, in some way, worked so far > (except for using webbrowsers, which have only horrible > performance and no sound) and even consoles have the > right layout. > > Then I could not find an ytime to continue. > Now, I setup x2goserver on thre computers, means, > direcly like usually on the hardware (x2go: 4.1.0.3-4). > All my boxes running debian10, kernel 5.10 running xfce, > english setup, using a german keyboard layout. > > Shockingly, the keyboards are all wrong and unusable, > there is, most prominent, no pipe character (and others > are missed too, like the navigations keys, <alt-gr>, <del> > but umlauts are correkt!). If you press <alt-gr> a beep > ist issued. > This happens to x-consoles as gui progs! > XRDP, on the other hand, worked as before. > > I was unable to find documentation, which points out > how this all works, how keyboard/maps are done by default > on client and server, how this is initialized or how > this could be changed and on which side (or a full > shortcut reference). I tried to modify the settings > on the client-gui (4.1.2.2 ) session configuration, > but no variant (like "de-de") has influence at all. > > Thanks any way, > Manfred > > _______________________________________________ > x2go-user mailing list > x2go-user(a)lists.x2go.org > https://lists.x2go.org/listinfo/x2go-user

1 0

Big problem with keyboard/layout
by webman＠manfbraun.de 05 Sep '21

05 Sep '21

Hello! I hope, I can find some help here. I started once setting up x2goserver in a LXC container on a remote host and this, in some way, worked so far (except for using webbrowsers, which have only horrible performance and no sound) and even consoles have the right layout. Then I could not find an ytime to continue. Now, I setup x2goserver on thre computers, means, direcly like usually on the hardware (x2go: 4.1.0.3-4). All my boxes running debian10, kernel 5.10 running xfce, english setup, using a german keyboard layout. Shockingly, the keyboards are all wrong and unusable, there is, most prominent, no pipe character (and others are missed too, like the navigations keys, <alt-gr>, <del> but umlauts are correkt!). If you press <alt-gr> a beep ist issued. This happens to x-consoles as gui progs! XRDP, on the other hand, worked as before. I was unable to find documentation, which points out how this all works, how keyboard/maps are done by default on client and server, how this is initialized or how this could be changed and on which side (or a full shortcut reference). I tried to modify the settings on the client-gui (4.1.2.2 ) session configuration, but no variant (like "de-de") has influence at all. Thanks any way, Manfred

2 1

Turn off the computer after the time has elapsed.
by ovt＠zaokknm.ru 24 Aug '21

24 Aug '21

2 2

x2go client using 16% cpu when not connected
by Jason Palmer 17 Aug '21

17 Aug '21

Hi, I noticed that x2go client uses 16% cpu and "high power" when run, even before connecting. When closed, cpu usage stops. This is on Alienware M13 R1, Windows 10. Weirdly the cpu usage shows under the "System" process in task manager. I have run sysinternals from Microsoft, and checked thread addresses that are active under the System processes. The processes are just kernel processes. And weirdly, System only shows as using 8% cpu in sysinternals, but 16% in task manager. Microsoft process monitoring is obviously lacking, unsurprisingly. Anyone else experience this, or have an idea what is going on? No viruses are reported. My hunch based on using this laptop is that the graphics card driver is running some system process when x2go is run, but the whole thing is very mysterious and confusing. Thanks, Jason

1 0

How to access a thin client computer via ssh for administrative tasks?
by ovt＠zaokknm.ru 16 Aug '21

16 Aug '21

1 0

Error binding localhost
by richard lucassen 14 Aug '21

14 Aug '21

I work with x2go for many weeks and regularly put the session in "pause". This normally works well, but sometimes (randomly) I get, when resuming: Unable to create SSH tunnel for X2Go session (NX) startup: Error binding localhost:<port> I cannot find anything about this issue in .xsession-x2go-x2go-errors. There is nothing listening on localhost:<port> as reported and IIRC a new session after a reboot starts with display :50 but apparently it has changed to :51 What can I do to debug this? For the moment I reboot the box (lazy) as all processes are still running. R. -- richard lucassen http://contact.xaq.nl/

1 0

connecting to a just booted machine
by Carlos Alfaro 08 Aug '21

08 Aug '21

Hello and thanks in advance to those who take the time to respond. I tried this before and it doesn't work. I have my x2go client machine and my x2go server. The server ( I have tried POP_Os, Ubuntu, LXLE and Lubuntu) and I am able to install it properly. My problem is that from the client side, I use my firewall to send a WOL pocket to turn on some of the machines which do not stay on 24/7. The ones that are always on I just launch the session and I am in. When I wake up a machine or reboots because of a power outage, I can use a terminal and log on to the machines via ssh. I open the ssh port on the firewall and I can log on just fine. This is the problem, while I can log on to the machine via SSH I can't connect with the x2go client right after the machine boots up. I have to manually walk to the machine and log on by entering my user name and password and then I can connect with the x2go client. This is not a problem in my local lab but it is a problem for the remote machines where there isn't always someone there to log on to the machine so I can then log on using the x2go client. Once logged in, no problem, I can lock the machine, put it to sleep, wake it again with WOL and log on with the x2go client again and again. Any suggestions as to where I can look at or what configuration setting to add or change so I can launch as session and get the log on screen of the server? Thanks again Charlie

3 3

Browsers (Firefox, chrome) stopped working in x2go sessions in CentOS7
by Grigory Shamov 04 Aug '21

04 Aug '21

Hi All, We had a problem , for a while now, that browsers do not work under x2go in our CentOS 7 servers. I think it started somewhere in Cent 7.6 and definitely stays on now in CentOS 7.9. The browser starts , but cannot create any child processes. So, no tabs, windows, or pages ever gets opened. Has anyone met this issue? What would be a way to troubleshoot it? Thank you very much in advance! -- Grigory Shamov WestGrid Site Lead / HPC Specialist University of Manitoba

2 1

Session not starting with Python 3 on Windows
by Tomáš Cerha 02 Aug '21

02 Aug '21

Dear list, I am using the X2Go Python API to develop a custom UI for running our applications from Windows and Linux client machines. We are now migrating to Python 3. The client now works on Linux in Python 2 and 3 and on Windows in Python 2. I, however, can’t get it to work in Python 3 on Windows. I see that the official PyHoca GUI for Windows is still Python 2.7 so I am curious what is the current state of X2Go migration to Python 3 and whether there are some known issues. Some details of my particular problem: I am trying to start xterm (for testing) from Windows on a Linux server. My client starts the X2Go session, starts nxproxy, but the xterm window doesn’t appear. The client’s log looks like this: pytis2go[8736] (x2goclient-pylib) DEBUG: command for new session is: xterm pytis2go[8736] (x2gocontrolsession-pylib) DEBUG: executing command on X2Go server ,,xterm Python 3'': echo X2GODATABEGIN:dfa49ff9-eec5-11eb-80a1-080027e6e559; PATH=/usr/local/bin:/usr/bin:/bin sh -c "echo"; echo X2GODATAEND:dfa49ff9-eec5-11eb-80a1-080027e6e559 pytis2go[8736] (x2goguardian-pylib) DEBUG: Entering X2Go Guardian client management loop... pytis2go[8736] (x2goproxy-pylib) DEBUG: NX3 Proxy mode is server, cookie=2532ea9e54c10c087472bb500e715d1d, host=127.0.0.1, port=52113. pytis2go[8736] (x2goproxy-pylib) DEBUG: NX3 proxy writes session log to C:\Users\IEUser\.x2go\S-cerha-50-1627381881_stRxterm_dp32\session.log. pytis2go[8736] (x2goproxy-pylib) DEBUG: forking threaded subprocess: C:\pytis2go\win_apps\nxproxy\nxproxy.exe -S nx/nx,options=\..\S-cerha-50-1627381881_stRxterm_dp32\options:50 pytis2go[8736] (x2goproxy-pylib) DEBUG: waiting for proxy to come up: 0.4s x 1 pytis2go[8736] (x2goproxy-pylib) DEBUG: waiting for port fw tunnel to come up: 0.5s x 1 pytis2go[8736] (x2goguardian-pylib) DEBUG: Entering X2Go Guardian client management loop... The session.log at this time contains: NXPROXY - Version 3.5.0 Copyright (C) 2001, 2010 NoMachine. See http://www.nomachine.com/ for more information. Info: Proxy running in client mode with pid '9596'. Session: Starting session at 'Tue Jul 27 03:32:06 2021'. Info: Connecting to remote host '127.0.0.1:52113'. Info: Connection to remote proxy '127.0.0.1:52113' established. If I kill the client after some time when “nothing happens”, the session.log contains these additional lines: Error: The remote NX proxy closed the connection. Warning: Couldn't start '/bin/true'. Error is 2 'No such file or directory'. Warning: Trying with path '/usr/NX/bin:/opt/NX/bin:/usr/local/NX/bin:.:/cygdrive/c/pytis2go/venv/p2go3/Scripts:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Windows/System32/OpenSSH:/cygdrive/c/ProgramData/chocolatey/bin:/cygdrive/c/Program Files/Puppet Labs/Puppet/bin:/cygdrive/c/Users/IEUser/AppData/Local/Microsoft/WindowsApps'. Error: Failure negotiating the session in stage '7'. Error: Wrong version or invalid session authentication cookie. Session: Terminating session at 'Tue Jul 27 03:33:16 2021'. Session: Session terminated at 'Tue Jul 27 03:33:16 2021'. Warning: Couldn't start 'nxclient'. Error is 2 'No such file or directory'. Warning: Trying with path '/usr/NX/bin:/opt/NX/bin:/usr/local/NX/bin:.:/usr/NX/bin:/opt/NX/bin:/usr/local/NX/bin:.:/cygdrive/c/pytis2go/venv/p2go3/Scripts:/cygdrive/c/Windows/system32:/cygdrive/c/Windows:/cygdrive/c/Windows/System32/Wbem:/cygdrive/c/Windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Windows/System32/OpenSSH:/cygdrive/c/ProgramData/chocolatey/bin:/cygdrive/c/Program Files/Puppet Labs/Puppet/bin:/cygdrive/c/Users/IEUser/AppData/Local/Microsoft/WindowsApps'. The “options” file in the session directory contains: nx/nx,retry=5,composite=1,connect=127.0.0.1,clipboard=1,cookie=2532ea9e54c10c087472bb500e715d1d,port=52113,errors=.\..\S-cerha-50-1627381881_stRxterm_dp32\session.err:50 I suppose that nxproxy.exe can not depend on the currently active Python version, so the problem should be on the x2go Python library side. Does anyone have any idea how to proceed? What to check or how to further debug it? Thank you for any idea. Best regards Tomáš Cerha

2 3

x2go crashing in windows 10
by Matthew Ayres 02 Aug '21

02 Aug '21

Hello, I have several users that are running x2go on windows to connect to linux boxes x2go starts the connection and then fails during the authentication client side windows logs Faulting application name: x2goclient.exe, version: 0.0.0.0, time stamp: 0x057066f0 Faulting module name: ntdll.dll, version: 10.0.19041.1110, time stamp: 0x8a32a22a Exception code: 0xc0000005 Fault offset: 0x00087450 Faulting process id: 0x2844 Faulting application start time: 0x01d77cb8dca4b874 Faulting application path: C:\Program Files (x86)\x2goclient\x2goclient.exe Faulting module path: C:\Windows\SYSTEM32\ntdll.dll Report Id: dd2d29ec-2d9f-4f2e-aa0a-95d0bfee1663 Faulting package full name: Faulting package-relative application ID:

2 1

Speedup Desktop Performance
by res1＠embeddedjava.de 27 Jul '21

27 Jul '21

Hi everyone, I noticed that the desktop performance is relatively slow, especially also for direct connection to the local PC (X2Go-Client on Local machine connects to X2Go-Server on Local machine). My expectation is that such connection (possible only over the loopback device) should run very fast, but isn't. So why is this the case? The same issue I observed in the local network (at 1GBit speed). That means that connections over the global net can't be fast, if it is not possible with direct connections or local net, if there are some speed issues than the remote desktop is not usable anymore. I don't think that my PC is the bottleneck (Ryzen 3700 + 32GB RAM + PCIe SSD). Regards, Thomas

3 2

script after resume
by richard lucassen 27 Jul '21

27 Jul '21

Hello list, Is there a way to run a script after resuming a paused session? R. -- richard lucassen http://contact.xaq.nl/

3 3

redirect the smartcard device
by Anton Shevtsov 27 Jul '21

27 Jul '21

Hi, official x2goclient supports redirect the smartcard devices? like as, xfreerdp /smartcard option.. ?

2 1

x2go crashing in windows 10
by Matthew Ayres 19 Jul '21

19 Jul '21

Hello, I have several users that are running x2go on windows to connect to linux boxes x2go starts the connection and then fails during the authentication client side windows logs Faulting application name: x2goclient.exe, version: 0.0.0.0, time stamp: 0x057066f0 Faulting module name: ntdll.dll, version: 10.0.19041.1110, time stamp: 0x8a32a22a Exception code: 0xc0000005 Fault offset: 0x00087450 Faulting process id: 0x2844 Faulting application start time: 0x01d77cb8dca4b874 Faulting application path: C:\Program Files (x86)\x2goclient\x2goclient.exe Faulting module path: C:\Windows\SYSTEM32\ntdll.dll Report Id: dd2d29ec-2d9f-4f2e-aa0a-95d0bfee1663 Faulting package full name: Faulting package-relative application ID: -- Matthew Ayres I do what my wife tells me !

1 0

Connect to local desktop with larger resolution
by Darko K. 15 Jul '21

15 Jul '21

Hi, I am connecting to my remote machine using X2Go. So far everything works fine but I can't figure out one detail. Namely the remote PC has two monitors attached with resolutions 1920x1200 and 1600x1200. This results in desktop resolution 3520x1200. My local desktop resolution is 2560x1440. Both PCs are running Linux. I have created a new session in X2Go Client with type set to 'Connect to local desktop'. No matter what resolution I set in session preferences, client creates a window with size 1921x1200. The contents of the remote desktop is scaled down to fit into that window. This is pretty much unusable since the remote desktop's resolution is so big. I expected it to create window with scroll bars and no scaling. Enabling or disabling Xinerama extension in session preferences does not help either. With it enabled I see content of both monitors, with it disabled I see content of one monitor with the remaining part of the remote desktop being blacked out. I checked all command line options and I could not find anything that would hint at solving my issue. Thanks for your help, Darko

2 2

x2gothinclient TCE-nfs -x-session break
by ovt＠zaokknm.ru 15 Jul '21

15 Jul '21

2 1

nxagent SIGSEGV when running glxinfo (and firefox) on a host with cuda installed
by Norman Gaywood 14 Jul '21

14 Jul '21

We have some centos 7 systems with GPUs that users access with x2go to run their machine learning task. After an update to cuda on the centos 7 systems, nxagent now segfaults when I run glxinfo or firefox. nxagent-3.5.99.26-1.el7.x86_64 x2goserver-4.1.0.3-9.el7.x86_64 cuda-11.4.0-1.x86_64 kmod-nvidia-latest-dkms-470.42.01-1.el7.x86_64 What's also interesting is that if I x2go into a host that does not have cuda installed, and then: ssh -Y cudahost glxinfo then the nxagent on the non-cuda host segfaults. This happens with glxinfo and when trying to start firefox. google-chrome works fine. This was all working fine until I updated cuda and the GPU driver. On Centos 7.9.2009 This happens on a host with a K80 GPU and another host that has a V100 GPU. I also have cuda-11.4 on a Fedora 34 host with a V100 GPU. If I x2go (or ssh -Y) to the Fedora 34 host, glxinfo (and firefox) run fine. nxagent-3.5.99.26-1.fc34.x86_64 x2goserver-4.1.0.3-10.fc34.x86_64 cuda-11.4.0-1.x86_64 kmod-nvidia-latest-dkms-3:465.19.01-1.fc33.x86_64 Any suggestions on how I might provide some debugging information to the developers? abrt-cli list --since 1626070479 id 35db2c461122be7229abdbe219ddfd92d0613da8 reason: nxagent killed by SIGSEGV time: Mon 05 Jul 2021 09:37:02 AEST cmdline: x2goagent -nolisten tcp -nolisten tcp -dpi 97 -D -auth /home/ngaywood/.Xauthority -geometry 2560x1440 -name X2GO-ngaywood-50-1625441817_stDMATE_dp24 :50 package: nxagent-3.5.99.26-1.el7 uid: 5125 (ngaywood) count: 21 Directory: /var/spool/abrt/ccpp-2021-07-05-09:37:02-2523 -- Norman Gaywood, Computer Systems Officer School of Science and Technology University of New England Armidale NSW 2351, Australia ngaywood(a)une.edu.au http://turing.une.edu.au/~ngaywood Phone: +61 (0)2 6773 2412 Mobile: +61 (0)4 7862 0062 Please avoid sending me Word or Power Point attachments. See http://www.gnu.org/philosophy/no-word-attachments.html

2 2

Crashing X2Go When Launching Java
by Thackeray, Neil L 06 Jul '21

06 Jul '21

We are having problems with X2Go crashing whenever a java application launches. The behavior we've seen this with are Matlab and Libre Office. The error log for a session is below: XSession-x2go: X session started for foo at Tue 06 Jul 2021 10:56:11 AM CDT dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-ZYRSF8zvwo,guid=5029f305c229ae890543984260e47d1b dbus-update-activation-environment: setting DISPLAY=:51 dbus-update-activation-environment: setting XAUTHORITY=/home/foo/.Xauthority dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 xhost: must be on local machine to add or remove hosts. localuser:foo being added to access control list dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 dbus-update-activation-environment: setting QT_ACCESSIBILITY=1 dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 dbus-update-activation-environment: setting SHELL=/bin/bash dbus-update-activation-environment: setting QT_ACCESSIBILITY=1 dbus-update-activation-environment: setting SSH_AUTH_SOCK=/home/foo/.x2go/C-foo-51-1625586962_stDXFCE_dp32/ssh-agent.PID dbus-update-activation-environment: setting STARTUP=/usr/bin/env LD_LIBRARY_PATH= xfce4-session dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge dbus-update-activation-environment: setting KRB5CCNAME=FILE:/tmp/krb5cc_30106_1IvBkz dbus-update-activation-environment: setting PWD=/home/foo dbus-update-activation-environment: setting LOGNAME=foo dbus-update-activation-environment: setting XDG_SESSION_TYPE=tty dbus-update-activation-environment: setting GPG_AGENT_INFO=/run/user/30106/gnupg/S.gpg-agent:0:1 dbus-update-activation-environment: setting XAUTHORITY=/home/foo/.Xauthority dbus-update-activation-environment: setting X2GO_SESSION=foo-51-1625586962_stDXFCE_dp32 dbus-update-activation-environment: setting HOME=/home/foo dbus-update-activation-environment: setting LANG=en_US.UTF-8 dbus-update-activation-environment: setting PULSE_CLIENTCONFIG=/home/foo/.x2go/C-foo-51-1625586962_stDXFCE_dp32/.pulse-client.conf dbus-update-activation-environment: setting SSH_CONNECTION=192.168.2.235 56888 192.168.1.3 22 dbus-update-activation-environment: setting QT_GRAPHICSSYSTEM=native dbus-update-activation-environment: setting XDG_SESSION_CLASS=user dbus-update-activation-environment: setting TERM=dumb dbus-update-activation-environment: setting X2GO_AGENT_PID=41248 dbus-update-activation-environment: setting USER=foo dbus-update-activation-environment: setting DISPLAY=:51 dbus-update-activation-environment: setting SHLVL=2 dbus-update-activation-environment: setting XDG_RUNTIME_DIR=/run/user/30106 dbus-update-activation-environment: setting SSH_CLIENT=192.168.2.235 56888 22 dbus-update-activation-environment: setting XDG_DATA_DIRS=/usr/local/share:/usr/share:/var/lib/snapd/desktop dbus-update-activation-environment: setting PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/snap/bin dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-ZYRSF8zvwo,guid=5029f305c229ae890543984260e47d1b dbus-update-activation-environment: setting MAIL=/var/mail/foo dbus-update-activation-environment: setting XSESSION_EXEC=xfce4-session dbus-update-activation-environment: setting _=/usr/bin/dbus-update-activation-environment dbus-update-activation-environment: warning: error sending to systemd: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.freedesktop.systemd1 exited with status 1 Gtk-Message: 10:56:12.094: Failed to load module "atk-bridge" gpg-agent[41537]: WARNING: "--write-env-file" is an obsolete option - it has no effect gpg-agent: a gpg-agent is already running - not starting a new one (xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.146: gpg-agent returned no PID in the variables Gtk-Message: 10:56:12.164: Failed to load module "atk-bridge" (xfwm4:41539): xfwm4-WARNING **: 10:56:12.190: The display does not support the XComposite extension. (xfwm4:41539): xfwm4-WARNING **: 10:56:12.190: Compositing manager disabled. (xfwm4:41539): xfwm4-WARNING **: 10:56:12.251: Error opening /dev/dri/card0: Permission denied Gtk-Message: 10:56:12.421: Failed to load module "atk-bridge" Gtk-Message: 10:56:12.426: Failed to load module "atk-bridge" Gtk-Message: 10:56:12.436: Failed to load module "atk-bridge" (xfsettingsd:41565): xfsettingsd-CRITICAL **: 10:56:12.456: Your XI is too old (1.3) version 1.4 is required. Gtk-Message: 10:56:12.457: Failed to load module "atk-bridge" (xfsettingsd:41565): xfsettingsd-CRITICAL **: 10:56:12.458: Failed to change the keyboard repeat Gtk-Message: 10:56:12.464: Failed to load module "atk-bridge" (xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.554: Unable to launch "light-locker" (specified by autostart/light-locker.desktop): Failed to execute child process "light-locker" (No such file or directory) (xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.557: Unable to launch "system-config-printer-applet" (specified by autostart/print-applet.desktop): Failed to execute child process "system-config-printer-applet" (No such file or directory) (xfce4-session:41470): xfce4-session-WARNING **: 10:56:12.563: Unable to launch "nm-applet" (specified by autostart/nm-applet.desktop): Failed to execute child process "nm-applet" (No such file or directory) Gtk-Message: 10:56:12.584: Failed to load module "atk-bridge" Gtk-Message: 10:56:13.282: Failed to load module "atk-bridge" Gtk-Message: 10:56:13.286: Failed to load module "atk-bridge" Failure: Module initialization failed ERROR: Unable to load info from any available system ** (xfce4-clipman:47166): WARNING **: 10:58:47.786: Unable to register GApplication: An object is already exported for the interface org.gtk.Application at /org/xfce/clipman (xfce4-clipman:47166): GLib-GIO-CRITICAL **: 10:58:47.786: g_application_get_is_remote: assertion 'application->priv->is_registered' failed (xfce4-clipman:47166): GLib-WARNING **: 10:58:47.786: g_set_application_name() called multiple times Gtk-Message: 10:58:57.773: Failed to load module "atk-bridge" Gtk-Message: 10:59:21.444: Failed to load module "atk-bridge" X IO Error wrapper-1.0: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. xfdesktop: Fatal IO error 104 (Connection reset by peer) on X server :51.0. wrapper-1.0: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. Gdk-Message: 10:59:55.630: xfce4-clipman: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. xfsettingsd: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. xfce4-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :51. xfwm4: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. Gdk-Message: 10:59:55.630: Thunar: Fatal IO error 11 (Resource temporarily unavailable) on X server :51. Gdk-Message: 10:59:55.630: polkit-gnome-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. xfce4-panel: Fatal IO error 11 (Resource temporarily unavailable) on X server :51.0. XIO: fatal IO error 0 (Success) on X server ":51.0" after 42 requests (42 known processed) with 0 events remaining. Neil thackeray Sr. Systems Engineer Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign 405 N. Mathews Avenue | M/C 251 Urbana, IL 61801 217.244.3283 |neilt(a)illinois.edu<mailto:pmjones5@illinois.edu> beckman.illinois.edu<http://beckman.illinois.edu> [cid:image001.png@01D77258.0C57D410]<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.facebook.com_Beckm…> [cid:image002.png@01D77258.0C57D410] <https://urldefense.proofpoint.com/v2/url?u=https-3A__twitter.com_beckmanins…> [cid:image003.png@01D77258.0C57D410] <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.instagram.com_beck…> [cid:image004.png@01D77258.0C57D410] <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.linkedin.com_showc…> [cid:image005.png@01D77258.0C57D410] <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_user_B…> [cid:image006.png@01D77258.0C57D410]<https://urldefense.proofpoint.com/v2/url?u=http-3A__illinois.edu_&d=DwMFAg&…> Under the Illinois Freedom of Information Act, any written communication to or from university employees regarding university business is a public record and may be subject to public disclosure.

2 3

x2gousbmounts fail
by ovt＠zaokknm.ru 06 Jul '21

06 Jul '21

1 0

x2go session resume always fails (long post)
by Norm Green 05 Jul '21

05 Jul '21

I'm having a problem resuming x2go sessions which now fails 100% of the time. The only way to use x2go is to kill all x2go processes on the server and restart x2goserver service, which causes the suspended session to be lost. This is driving me crazy. Any hints on how to debug this? Client is x2go 4.1.2.2 on windows 10 server is x2go 4.1.0.4-0 on Unbuntu 18.04 At the point the session is suspended, everything looks normal: I have a session and the x2goagent is still running. normg@moop>x2golistsessions 26617|normg-50-1625002538_stDXFCE_dp32|50|moop|S|2021-06-29T14:35:39|6fa8d13074afab1c2d58dee02b1085d8|10.94.155.18|43587|43588|2021-06-29T14:50:02|normg|1016|43589|-1|-1 normg@moop>cat state SUSPENDED normg@moop>cat options nx/nx,link=adsl,pack=16m-jpeg-9,limit=0,root=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32,cache=8M,images=32M,type=unix-kde-depth_32,id=normg-50-1625002538_stDXFCE_dp32,cookie=6fa8d13074afab1c2d58dee02b1085d8,errors=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/session.log_errors,kbtype=null/null,geometry=800x600,xinerama=0,resize=1,fullscreen=0,accept=localhost,listen=43587,clipboard=both,client=linux,menu=0,state=/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/state:50 normg@moop>tail session.log autograb : Ctrl+Alt+g dump_clipboard : Ctrl+Shift+Alt+c Info: keyboard blocking directory created: '/home/normg/.x2go/C-normg-50-1625002538_stDXFCE_dp32/keyboard' Info: Keycode conversion is off Session: Session started at 'Tue Jun 29 14:35:50 2021'. Info: Screen [0] resized to geometry [800x600] fullscreen [0]. Info: Screen [0] resized to geometry [3440x1387] fullscreen [0]. Session: Suspending session at 'Tue Jun 29 14:50:02 2021'. Info: Waiting the cleanup timeout to complete. Session: Session suspended at 'Tue Jun 29 14:50:05 2021'. /tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32 -------------------------------------------------------------------------- When I attempt to resume I get this error on the windows side: The remote proxy closed the connection while negotiating the session. When I attempt to resume there are errors in the log. For one thing, the "options" file is now size 0. I can't tell if I have an ssh tunnel problem or an x2go problem. The session log after the resume looks like this. Session: Resuming session at 'Tue Jun 29 14:54:40 2021'. Warning: Option file doesn't contain a port specification. Loop: PANIC! Can't read options from file '/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/options'. Error is 4 'Interrupted system call'. Error: Can't read options from file '/tmp/.x2go-normg/C-normg-50-1625002538_stDXFCE_dp32/options'. Error is 4 'Interrupted system call'. Error: Parsing of NX transport options failed. _X11TransSocketConnectConnInfo: Cannot create the NX transport. Loop: WARNING! Signal 'SIGINT' not installed in process with pid '26617'. Warning: Signal 'SIGINT' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGTERM' not installed in process with pid '26617'. Warning: Signal 'SIGTERM' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGHUP' not installed in process with pid '26617'. Warning: Signal 'SIGHUP' not installed in process with pid '26617'. Loop: WARNING! Signal 'SIGCHLD' not installed in process with pid '26617'. Warning: Signal 'SIGCHLD' not installed in process with pid '26617'. Session: Display failure detected at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:40 2021'. NXPROXY - Version 3.5.99.26 Info: Proxy running in client mode with pid '26617'. Session: Starting session at 'Tue Jun 29 14:54:40 2021'. Loop: PANIC! Call to bind failed for x11. Error is 98 'Address already in use'. Error: Call to bind failed for x11. Error is 98 'Address already in use'. Session: Session terminated at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:40 2021'. Session: Suspending session at 'Tue Jun 29 14:54:45 2021'. Session: Suspending session at 'Tue Jun 29 14:54:50 2021'. Session: Suspending session at 'Tue Jun 29 14:54:55 2021'. cat state RESUMING >tail /var/log/auth.log Jun 29 14:36:37 moop sshd[22738]: pam_unix(sshd:session): session closed for user normg Jun 29 14:36:37 moop su[25244]: pam_unix(su:session): session closed for user root Jun 29 14:36:37 moop systemd-logind[2033]: Removed session 30. Jun 29 14:50:05 moop sshd[25879]: pam_unix(sshd:session): session closed for user normg Jun 29 14:52:18 moop sshd[3540]: rexec line 16: Deprecated option UsePrivilegeSeparation Jun 29 14:52:18 moop sshd[3540]: rexec line 19: Deprecated option KeyRegenerationInterval Jun 29 14:52:18 moop sshd[3540]: rexec line 20: Deprecated option ServerKeyBits Jun 29 14:52:18 moop sshd[3540]: rexec line 32: Deprecated option RSAAuthentication Jun 29 14:52:18 moop sshd[3540]: rexec line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:52:18 moop sshd[3540]: reprocess config line 32: Deprecated option RSAAuthentication Jun 29 14:52:18 moop sshd[3540]: reprocess config line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:52:18 moop sshd[3540]: Accepted publickey for normg from 10.94.155.18 port 62301 ssh2: RSA SHA256:7IZ9shZ11Cs+7I+F9oGX+J/HwXehqo2WuO+DIqri8ag Jun 29 14:52:18 moop sshd[3540]: pam_unix(sshd:session): session opened for user normg by (uid=0) Jun 29 14:52:18 moop systemd-logind[2033]: New session 39 of user normg. Jun 29 14:54:34 moop sshd[4976]: rexec line 16: Deprecated option UsePrivilegeSeparation Jun 29 14:54:34 moop sshd[4976]: rexec line 19: Deprecated option KeyRegenerationInterval Jun 29 14:54:34 moop sshd[4976]: rexec line 20: Deprecated option ServerKeyBits Jun 29 14:54:34 moop sshd[4976]: rexec line 32: Deprecated option RSAAuthentication Jun 29 14:54:34 moop sshd[4976]: rexec line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:54:35 moop sshd[4976]: reprocess config line 32: Deprecated option RSAAuthentication Jun 29 14:54:35 moop sshd[4976]: reprocess config line 39: Deprecated option RhostsRSAAuthentication Jun 29 14:54:36 moop sshd[4976]: Accepted publickey for normg from 10.94.155.18 port 61095 ssh2: RSA SHA256:g5I1h8qQIEpuSkJl3+1D6VdhSAB89gJO3cGgVzZBfP8 Jun 29 14:54:36 moop sshd[4976]: pam_unix(sshd:session): session opened for user normg by (uid=0) Jun 29 14:54:36 moop systemd-logind[2033]: New session 40 of user normg. Jun 29 14:54:43 moop sshd[5048]: error: connect_to localhost port 43587: failed. Jun 29 14:54:43 moop sshd[5048]: channel_by_id: 0: bad id: channel free Jun 29 14:54:43 moop sshd[5048]: Disconnecting user normg 10.94.155.18 port 61095: ieof packet referred to nonexistent channel 0 Jun 29 14:54:43 moop sshd[4976]: pam_unix(sshd:session): session closed for user normg Jun 29 14:55:11 moop systemd-logind[2033]: Removed session 40. >tail /var/log/syslog Jun 29 14:54:06 moop snmpd[2635]: message repeated 3 times: [ error on subcontainer 'ia_addr' insert (-1)] Jun 29 14:54:36 moop systemd[1]: Started Session 40 of user normg. Jun 29 14:54:36 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1) Jun 29 14:55:06 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1) Jun 29 14:55:23 moop dhclient[1959]: DHCPREQUEST of 10.94.141.31 on br0 to 10.94.141.7 port 67 (xid=0x183e67fb) Jun 29 14:55:23 moop dhclient[1959]: DHCPACK of 10.94.141.31 from 10.94.141.7 Jun 29 14:55:23 moop dhclient[1959]: bound to 10.94.141.31 -- renewal in 3565 seconds. Jun 29 14:55:36 moop snmpd[2635]: error on subcontainer 'ia_addr' insert (-1)

2 5

I am overwhelmed by the sheer number of open source remote desktop software in the world
by Turritopsis Dohrnii Teo En Ming 03 Jul '21

03 Jul '21

Subject: I am overwhelmed by the sheer number of open source remote desktop software in the world Good day from Singapore, I am overwhelmed by the sheer number of open source remote desktop software in the world. How many open source remote desktop software projects are there in the world? There are simply too many choices! I don't know how to choose! Could you recommend some of the best open source remote desktop software? Thank you very much for your kind assistance. Mr. Turritopsis Dohrnii Teo En Ming, 43 years old as of 3rd July 2021, is a TARGETED INDIVIDUAL living in Singapore. He is an IT consultant with a System Integrator (SI)/computer firm in Singapore. He is an IT enthusiast. -- -----BEGIN EMAIL SIGNATURE----- The Gospel for all Targeted Individuals (TIs): [The New York Times] Microwave Weapons Are Prime Suspect in Ills of U.S. Embassy Workers Link: https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html ******************************************************************************************** Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 14 Feb 2019 and refugee seeking attempts at the United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 2019) and Australia (25 Dec 2019 to 9 Jan 2020): [1] https://tdtemcerts.wordpress.com/ [2] https://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming -----END EMAIL SIGNATURE-----

1 0

Zoom Desktop Client will not start over X2Go
by Justin Paulsen 02 Jul '21

02 Jul '21

Hello, When I connect over X20go to my Debian 10.9 workstation and try to start the Zoom Desktop Client it crashes immediately without even showing up. If I start it on the workstation locally it starts without issue. Has anyone else run into this issue, and if so have you found a solution? Use case: Sharing a window on the remote system during a meeting. Sharing the entire x20go session window is not desirable. Thank you!

4 5

x2gothinclient TCE-nfs x2gothinclient_usbmount
by ovt＠zaokknm.ru 02 Jul '21

02 Jul '21

1 0

x2gothinclient TCE-nfs -x-session break
by ovt＠zaokknm.ru 02 Jul '21

02 Jul '21

1 0

bell
by richard lucassen 30 Jun '21

30 Jun '21

I run x2go server (custom: /usr/bin/wmaker). When starting WindowMaker I run: xset b off which should switch off the bell. But quite often the bell still works, even after logging out and in. Anyone a hint? R. -- richard lucassen http://contact.xaq.nl/

2 5

Windows UAC Prompts
by Tobias Botens 28 Jun '21

28 Jun '21

Hey, during the installation of x2go on Windows 10 we are getting Windows UAC-Prompts. We want to distribute the Software via our Software-Distribution Product. How can we achieve a "silent Installation" without these prompts. If needed, we will create the firewall-Rules manually in our deployment-process. Kind Regards Tobias Botens

2 1

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