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2315 discussions

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 seem very outdated.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.

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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.

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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

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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

3 10

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/

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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

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