#1201 - Black window with KDE5 plasma

X2Go Bug report logs - #1201
Black window with KDE5 plasma

Reported by: Klaus Fuerstberger <linuxbox@arcor.de>

Date: Fri, 18 Aug 2017 10:35:01 UTC

Severity: normal

Merged with 892

Found in versions 4.1.0.0-0x2go1.2, 4.0.1.19-3.fc22

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Subject: Re: [X2Go-Dev] Black window with KDE5 plasma
To: 1201@bugs.x2go.org
References: <730dff47-1a1b-a7a0-3f05-ebd2905ac555@arcor.de>
 <handler.1201.B1201.15037575439869.ackinfo@bugs.x2go.org>
 <1a3dea91-6f46-091c-52df-80277c28dde2@arcor.de>
 <9376ae1f-5ea3-0c0d-f3ce-969dc2036276@ionic.de>
From: Klaus Fuerstberger <linuxbox@arcor.de>
Message-ID: <573978bc-4d55-ff42-4a8c-8276f037d616@arcor.de>
Date: Fri, 1 Sep 2017 12:42:41 +0200
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Am 01.09.2017 um 07:18 schrieb Mihai Moldovan: > On 08/28/2017 03:46 PM, Klaus Fuerstberger wrote: >> I tested an KDE Neon LTS 5.8 (based on Ubuntu xenial) and KDE Neon 5.9 >> (based on Ubuntu zesty) on my system. With both distributions, nouveau >> and mesa glx is running fine. Also connecting with x2go to an x2goserver >> installed is no problem. >> After compiling and installing the mentioned latest NVIDIA driver, x2go >> fails again to launch KDE plasma. > > This is likely the cause because the nVidia driver installs its own libGL version. > > This is fine as long you only ever use the machine locally, but fails badly in > use cases such as X2Go. > > Typically it might be possible to ignore the directory in which the package > installs this special libGL version and thus making sure that the MESA-gl > version is being used. Not a trivial task to do from X2Go's viewpoint, since the > libGL directory is hardcoded within the system's ld.so.conf file. The nvidia driver installer removes the conflicting mesa drivers and especially /usr/lib/x86_64-linux-gnu/libGL.so.1.2.0 If I backup this library bevor installing the nvidia driver and change one symbolic link pointing to the systems library then x2go works fine. # cd /usr/lib/x86_64-linux-gnu # ls -l libGL.so lrwxrwxrwx 1 root root 10 Sep 1 10:46 libGL.so -> libGL.so.1 The nvidia one #ls -l libGL.so.1 lrwxrwxrwx 1 root root 14 Sep 1 11:09 libGL.so.1 -> libGL.so.1.0.0 rm libGL.so.1 # The original library of the system ln -s libGL.so.1.2.0 libGL.so.1 Of course this workaround does not function, when started with the x2go Xsession, because the user has no write permissions in /usr/lib/x86_64-linux-gnu. I wonder why x2go worked bevor with KDE4 and the nvidia drivers. Klaus

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X2Go Bug report logs - #1201 Black window with KDE5 plasma

X2Go Bug report logs - #1201
Black window with KDE5 plasma