X2Go Bug report logs - #637
Qt5 apps crash at startup on Linux host

version graph

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

Reported by: André Wöbbeking <Woebbeking@web.de>

Date: Fri, 10 Oct 2014 23:10:01 UTC

Severity: important

Tags: confirmed, fixed-upstream, moreinfo

Merged with 78

Found in version 3.5.0.27

Fixed in version 3.5.99.0

Forwarded to https://github.com/ArcticaProject/nx-libs/pull/137

Full log


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Date: Mon, 13 Jun 2016 21:49:12 +0000
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From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
To: 78@bugs.x2go.org, #637@bugs.debian.org
Cc: Reinhard Tartler <siretart@gmail.com>
Subject: Re: [X2Go-Dev] Bug#78: NX_xrandr lacks support from Xrandr 1.2 and
 higher
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Control: forwarded -1 https://github.com/ArcticaProject/nx-libs/pull/137
Control: tags -1 fixed-upstream

Hi all,

On  Do 06 Dez 2012 13:17:05 CET, Mike Gabriel wrote:

> Hi Reinhard,
>
> On Do 06 Dez 2012 12:59:36 CET Reinhard Tartler wrote:
>
>> Package: x2goagent
>>
>> When starting a new x2go session, the startup scripts modify the
>> LD_LIBRARY_PATH of all applications to include /usr/lib/nx/X11/Xrandr.
>> This replaces the system libXrandr with the NX/X2go  provided one.
>> Unfortunately, this breaks the xrandr utility:
>>
>>>> echo $LD_LIBRARY_PATH
>> /usr/lib/nx/X11/Xrandr:/usr/lib/nx/X11/Xinerama:/usr/lib/nx/X11
>>
>>>> xrandr
>> xrandr: symbol lookup error: xrandr: undefined symbol: XRRGetScreenSizeRange
>> zsh: exit 127   xrandr
>
> this was done to work around a critical Ubuntu KDE bug in precise:
> https://bugs.launchpad.net/ubuntu/+source/libx11/+bug/985202
>
> The path add-on for Xrandr is only done for KDE sessions. I will be  
> happy to revert that nasty hack, but before that, we need someone to  
> dig into KDE and (if I recall correctly) the patches applied to  
> libxfixes in Ubuntu 12.04 and beyond.
>
> If you disable the LD_LIBRARY_PATH code for Xrandr (x2goruncommand),  
> then you will find regularly kwin crashes on KDE in precise+.
>
> Greets,
> Mike

I recently backport RANDR 1.5 extension to nx-X11's Xserver. Pull  
request still open (but review is in process):
https://github.com/ArcticaProject/nx-libs/pull/137

Mike

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