X2Go Bug report logs - #1083
local Xfce session blocks X2Go Xfce session (and vice versa) for same user

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Package: x2goserver; Maintainer for x2goserver is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goserver is src:x2goserver.

Reported by: René Genz <liebundartig@freenet.de>

Date: Sat, 10 Sep 2016 15:45:01 UTC

Severity: normal

Merged with 1046

Found in version 4.0.1.19

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Subject: Bug#1083: [X2Go-Dev] Bug#1083: local Xfce session blocks X2Go Xfce session (and vice versa) for same user
Reply-To: Orion Poplawski <orion@cora.nwra.com>, 1083@bugs.x2go.org
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To: René Genz <liebundartig@freenet.de>, 1083@bugs.x2go.org
References: <b78f5b3b-7cf9-53e2-2eb4-5b04e267310b@freenet.de>
From: Orion Poplawski <orion@cora.nwra.com>
Message-ID: <9cacf4e6-2c72-8c29-da5a-b407bee164ba@cora.nwra.com>
Date: Mon, 12 Sep 2016 14:49:56 -0600
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On 09/10/2016 09:23 AM, René Genz wrote:
> Package: x2goserver-xsession
> Version: 4.0.1.19
> 
> the situation with X2Go and Fedora 22 x86_64 as X2Go server:
> - local Xfce session does not block X2Go Xfce session of same user
> - X2Go Xfce session does not block local Xfce session for same user
> 
> 
> I did not test with Fedora 23.
> 
> 
> Unfortunately, with Fedora 24 x86_64 as X2Go server this changed:
> - local Xfce session blocks X2Go Xfce session of same user
> - X2Go Xfce session blocks local Xfce session for same user
> 
> 
> Choosing non-Xfce entry (f.e. LXDE) as X2Go and local session the connection
> is established and the session is started and working fine at the same time.
> No automatic disconnection.
> 
> 
> 
> Problem can be reproduced with these steps:
> on X2Go server computer (Fedora 24 x86_64): log in to Xfce session as 'user'
> 
> on X2Go client computer:
> - start X2Go Client and connect to X2Go server as 'user' and a Xfce session
> - in X2Go Client status changes to 'Running'
> - window for remote computer appears
> - some seconds later same window is closed automatically
> - in X2Go Client status changes to 'Finished'
> 
> The X2Go Client version and operating system does not seem to matter. I could
> reproduce the problem with:
> - Windows 7 X2Go Client 4.0.5.1 2016-08-18
> - Lubuntu 14.04 X2Go Client 4.0.1.1
> - Mac OS X 10.10.6 with X2Go Client 4.0.5.1
> 
> 
> 
> Output on Fedora 24 X2Go server is:
> $ tail -f /home/user/.xsession-x2go-errors
> XSession-x2go: X session started for user at Sat Sep 10 15:09:20 CEST 2016
> xfce4-session: Another session manager is already running
> 
> $ sudo tail -f /var/log/messages
> Sep 10 15:30:51 f24e5720 systemd-logind: New session 21 of user user.
> Sep 10 15:30:51 f24e5720 systemd: Started Session 21 of user user.
> ...
> Sep 10 15:30:53 f24e5720 /usr/sbin/x2gocleansessions[753]:
> user-50-1473514252_stDXFCE_dp24: state file for this session does not exist:
> /tmp/.x2go-user/C-user-50-1473514252_stDXFCE_dp24/state (this can be ignored
> during session startups)
> Sep 10 15:30:54 f24e5720 /usr/bin/x2gostartagent: successfully started X2Go
> agent session with ID user-50-1473514252_stDXFCE_dp24
> ...
> Sep 10 15:30:55 f24e5720 /usr/bin/x2goruncommand: launching session with
> Xsession-x2go mechanism, using STARTUP="xfce4-session"
> ...
> Sep 10 15:31:07 f24e5720 systemd-logind: Removed session 21.
> 
> 
> 
> Disabling SElinux on Fedora 24 X2Go server does not make a difference:
> $ sudo vim /etc/selinux/config
> set to disabled
> $ sudo reboot
> 
> 
> Performing fresh installation of Fedora 24 X2Go server from scratch does not
> make a difference.
> 
> 
> Version number comparison:
> ### F22
> $ which xfce4-session
> /usr/bin/xfce4-session
> $ rpm -qf /usr/bin/xfce4-session
> xfce4-session-4.12.1-3.fc22.x86_64
> $ rpm -q x2goserver
> x2goserver-4.0.1.19-3.fc22.x86_64
> $ rpm -q x2goserver-xsession
> x2goserver-xsession-4.0.1.19-3.fc22.x86_64
> 
> ### F24
> $ which xfce4-session
> /usr/bin/xfce4-session
> $ rpm -qf /usr/bin/xfce4-session
> xfce4-session-4.12.1-9.fc24.x86_64
> $ rpm -q x2goserver
> x2goserver-4.0.1.19-11.fc24.x86_64
> $ rpm -q x2goserver-xsession
> x2goserver-4.0.1.19-11.fc24.x86_64
> 
> 
> 
> Maybe changes for this bug are related?
> http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=1046
> 
> If you think this is a bug in xfce4-session or Fedora, please, tell me and I
> will file a bug report there.

This looks like a dupe of X2Go bug report #1046.  See also
https://bugzilla.redhat.com/show_bug.cgi?id=1350004

There have been no comments from the X2Go folks on that report though.

Does the fix from that report work for you?

-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA, Boulder/CoRA Office             FAX: 303-415-9702
3380 Mitchell Lane                       orion@nwra.com
Boulder, CO 80301                   http://www.nwra.com

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