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2322 discussions

Re: [X2Go-User] X authorization issues
by Mihai Moldovan 10 Apr '15

10 Apr '15

On 09.04.2015 09:28 PM, Christoph Schmidt-Hieber wrote: > On Thu, Apr 09, 2015 at 09:18:15PM +0200, Mihai Moldovan wrote: >> Please check ~/.xsession-x2go-errors > This file doesn't exist in my home directory although I've set the > x2goserver log level to "debug". > > xfce4 is installed, and I can run xfce4-session through an ssh -X > connection. Ok. Can you please check that x2goserver-xsession is installed? I suspect this is not the case. Mihai

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WorkSpace Switching
by Robert Dinse 10 Apr '15

10 Apr '15

I spoke too soon, the control-alt-left-arrow or control-alt-right-arrow to switch workspaces when you have an x2go client in them works sometimes. It seems to initially not work, but when you use control-alt-m to minimimize, after it's restored, then the other keys work. This is under Ubuntu with a MatÃ©desktop. -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting. Knowledgeable human assistance, not telephone trees or script readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

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GNOME and Unity can not launch
by Heng Zhou 09 Apr '15

09 Apr '15

Hi, I installed the latest X2Go client, but it only works with KDE. When I tried to launch Unity and GNOME desktop, they always fail. To be specific, when I selected Unity, the desktop just flashes and disappear. When I selected GNOME, I got a black desktop window and VcXsrv reports an error saying "Cannot establish any listening socket - make sure an X server isn't already running". The contents of VCXSrv.0.log is: _XSERVTransSocketCreateListener: failed to bind listener _XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed _XSERVTransMakeAllCOTSServerListeners: failed to create listener for inet6 _XSERVTransSocketCreateListener: failed to bind listener _XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed _XSERVTransMakeAllCOTSServerListeners: failed to create listener for inet (EE) Fatal server error: (EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE) (EE) Server terminated with error (1). Closing log file. I have no idea how to check if any X server is running on my computer. All the settings of X2Go are default. The remote machine is ubuntu 14.04. Any help? Thanks.

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x2goserver issue on Ubuntu precise ...
by Sylvain Milot 09 Apr '15

09 Apr '15

Hello everyone, I have the following on my client when I connect to a server running the same ubuntu precise distribution: $ cat .x2go/S-sylvain-52-1428522297_stDXFCE_dp24/sessions Loop: PANIC! The remote NX proxy closed the connection. Loop: PANIC! Failure negotiating the session in stage '7'. Loop: PANIC! Wrong version or invalid session authentication cookie. $ lsb_release -d Description: Ubuntu 12.04.5 LTS $ dpkg -l | egrep 'x2go|nxproxy' | perl -ne '@f=split; print "$f[1]\t$f[2]\n"' | column -t nxproxy 2:3.5.0.31-0~605~ubuntu12.04.1 x2goagent 2:3.5.0.31-0~605~ubuntu12.04.1 x2goclient 4.0.3.2-0~800~ubuntu12.04.1 x2goserver 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-extensions 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-xsession 4.0.1.19-0~1064~ubuntu12.04.1 Has anyone encountered this ? I had this working at some point and it appears a regression may be at play on the server side. I googled the problem and it seems to have been reported many years ago so perhaps someone on this list can provide some quick insight? On my ubuntu server (also 12.04.5) I have the following : $ dpkg -l | egrep 'x2go|nxproxy' | perl -ne '@f=split; print "$f[1]\t$f[2]\n"' | column -t nxproxy 2:3.5.0.31-0~605~ubuntu12.04.1 python-six 1.8.0-1~bpo70+1~0x2go~ubuntu12.04.1 x2goagent 2:3.5.0.31-0~605~ubuntu12.04.1 x2goclient 4.0.3.2-0~800~ubuntu12.04.1 x2goserver 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-compat 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-extensions 4.0.1.19-0~1064~ubuntu12.04.1 x2goserver-xsession 4.0.1.19-0~1064~ubuntu12.04.1 I changed loglevel=debug on the x2go server to look for clues but nothing caught my attention. Note that with the same client (running at home) I can connect to other servers running Debian squeeze, on the same network as the ubuntu precise server (at work). On my debian squeeze servers, I have this ... all works nicely here though: $ dpkg -l | egrep 'x2go|nxproxy' | perl -ne '@f=split; print "$f[1]\t$f[2]\n"' | column -t libnx-x11 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 libssh-4 0.5.4-2~deb6+x2go2 libxcomp3 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 libxcompext3 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 libxcompshad3 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 nxagent 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 nxproxy 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 rdesktop 1.7.1-0~bpo60+x2go1 x2go-keyring 2012.07.23+squeeze~main~17~build1 x2goagent 2:3.5.0.28-0x2go1+git20141113.546+squeeze.main.1 x2goclient 4.0.3.1-0x2go1+git20141127.753+squeeze.main.1 x2godesktopsharing 3.1.1.1-0x2go1+git20140401.131+squeeze.main.1 x2goserver 4.0.1.18-0x2go1+git20141006.949+squeeze.main.1 x2goserver-compat 4.0.1.18-0x2go1+git20141006.949+squeeze.main.1 x2goserver-extensions 4.0.1.18-0x2go1+git20141006.949+squeeze.main.1 x2goserver-xsession 4.0.1.18-0x2go1+git20141006.949+squeeze.main.1 Thanks in advance for any help and x2go is a great piece of software BTW! Sylvain --- Sylvain Milot (sylvain(a)bic.mni.mcgill.ca) (sylvain.milot(a)mcgill.ca) Brain Imaging Centre Montreal Neurological Institute 3801 University Street Webster 2B, Room 206 Montreal, Qc., Canada, H3A 2B4 Phone : (514) 398-4965, Fax: 398-8948 Mobile : (514) 712-1768 Office : 527 Av Des Pins O., Room 104 Montreal, Qc., H2W 1S4

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Re: [X2Go-User] Fwd: Ctrl-s not recognised (OS X client)
by Mihai Moldovan 08 Apr '15

08 Apr '15

On 08.04.2015 01:35 PM, Christopher Thomas wrote: > I usually start emacs using a function that I have defined in my > .bashrc file that puts it in the background automatically, since > otherwise I often forget to do that. However the behaviour is the same > if I simply type "emacs" from the command line. > > However this problem is not confined to emacs. For example if I start > LibreOffice then the usual save command Ctrl-s does nothing. This hints at something else capturing the keypresses. So, emacs is started by bash and bash naturally in a terminal, but what is this terminal started from? A full desktop environment or the terminal emulator as a single application in X2Go Client? > Should I be trying to sort this out from the server end? But as I > said this is a university server so there is a limited amount I can do > apart from contacting the administrators there. I have started the xev > program from a terminal after logging in via x2go but I don't know how > to interpret the output. Starting up xev will likely put it into foreground and every X11 event is printed out verbatim. Make sure the pointer doesn't move, or you will be spammed with messages. Pressing Ctrl will print a message with "Control_L" on the third line. Afterwards, pressing "s" (hold Ctrl all the time) will print a message having "s" in the third line and the fourth line will read XLookupString gives 1 bytes: (13) "" if everything is working as expected. Given that the key combination is not recognized in emacs and LibreOffice, I suspect nothing will pop up in xev. However, my basic test suggested that it's not a general X2Go problem, as it's working on my machine(s) and I know a few users using LibreOffice via X2Go. Naturally, Ctrl-S not working would be a grave issue for them. My current suspicion is that the keypresses are either captured by a desktop environment or NX. I understand that you have no control over the remote system as such, but, if existent, what is the content of /etc/nxagent/keystrokes.cfg? Mihai

1 0

Ctrl-s not recognised (OS X client)
by Christopher Thomas 08 Apr '15

08 Apr '15

Hi, I connect to my university servers remotely from OS X using x2go. It seems that the keystroke combination Ctrl-s (and perhaps some other combinations) are not recognised. This is quite inconvenient, particularly since I use emacs extensively and Ctrl-s is the command for a search. I couldn't find any info on this problem. Can anyone help? Chris

2 3

OSX/windows keyboards?
by Les Mikesell 07 Apr '15

07 Apr '15

When I start a remote linux session from an OSX client, then disconnect and pick up the session from a windows client, the screen seems OK but the keyboard input is garbage. I thought I had that problem a long time ago and then it was fixed. Do the client versions have to stay in sync? And is there some way to reset the keyboard type to fix it and continue the session? -- Les Mikesell lesmikesell(a)gmail.com

2 2

trouble connecting to server
by Michael Stauffer 06 Apr '15

06 Apr '15

Hi, I've just setup a new x2go server (CentOS Linux release 7.0.1406). I installed using yum and the epel repo. I can ssh to the server without trouble. I'm running x2goclient on Max OS X 10.8.5. I have XQuartz installed and it works with other X apps. === When I try to connect, I get this in the x2goclient window: 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 '55900'x2go-WARNING-1> "Can't load translator: :/x2goclient_en_us" x2go-WARNING-2> "Can't load translator: :/qt_en_US" Connection timeout, abortingInfo: Aborting the procedure due to signal '15'. Session: Session terminated at 'Fri Mar 27 16:53:57 2015'. . Session: Starting session at 'Fri Mar 27 16:53:27 2015'. Info: Connecting to remote host 'localhost:31009'. === I found x2go logs on the client: .x2go/C-mgstauff-52-1427489600_stDGNOME_dp32/session.log running as X2Go Agent NXAGENT - Version 3.5.0 Copyright (C) 2001, 2011 NoMachine. See http://www.nomachine.com/ for more information. Info: Agent running with pid '4746'. Session: Starting session at 'Fri Mar 27 16:53:24 2015'. Info: Proxy running in server mode with pid '4746'. Info: Waiting for connection from 'localhost' on port '30009'. Info: Aborting the procedure due to signal '1'. Error: Aborting session with 'Unable to open display 'nx/nx,options=/tmp/.x2go-mgstauff/C-mgstauff-52-1427489600_stDGNOME_dp32/options:52''. Session: Aborting session at 'Fri Mar 27 16:54:14 2015'. Session: Session aborted at 'Fri Mar 27 16:54:14 2015'. === On the server, I see this in /var/log/messages: Mar 27 16:53:24 cx2go /usr/bin/x2gostartagent: successfully started X2Go agent session with ID mgstauff-52-1427489600_stDGNOME_dp32 Mar 27 16:54:14 cx2go /usr/bin/x2gosuspend-session: session with ID mgstauff-52-1427489600_stDGNOME_dp32 has been suspended successfully When I terminate the failed x2goclient session, the app crashes. Does anyone have any suggestions about this? Thanks! -M

5 15

CTR-ALT- <- ->
by Robert Dinse 04 Apr '15

04 Apr '15

I noticed that at some point someone fixed x2go so my control-alt-left or control-alt-right arrows now switch work spaces as they do in remmina which makes x2go SO much more useful to me. Whoever made that fix, THANK YOU! -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting. Knowledgeable human assistance, not telephone trees or script readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

1 0

Centos 7
by Robert Dinse 04 Apr '15

04 Apr '15

Under CentOS 7 I've updated to the latest kernel provided in the El Repo repository, kernel-ml.x86_64 3.19.3-1.el7.elrepo @elrepo-kernel They have no version configured with pre-emption and this version without does not provide smooth video over x2go, very jerky and laggy like the stock kernel. If I build a kernel from source from kernel.org, even using the same conf, and install it: make clean; make; make modules_install install The entire process proceeds without error but it breaks something horribly in grub and instead of a boot menu I get a pointer alignment error when I try to boot, so I haven't been able to install a custom preemptive kernel on this machine. The packaged kernels install fine, so it's got to be something different with grub2 that the make file isn't doing. I've found instructions on the web for building custom kernels and they recommend the above procedure which is the same as Centos6, but it does not work for me. Anyone with any pointers? -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting. Knowledgeable human assistance, not telephone trees or script readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.

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