X2Go Bug report logs - #78
NX_xrandr lacks support from Xrandr 1.2 and higher

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

Reported by: Reinhard Tartler <siretart@gmail.com>

Date: Thu, 6 Dec 2012 12:03:02 UTC

Severity: important

Tags: confirmed, fixed-upstream, moreinfo

Merged with 637

Found in version 3.5.0.27

Fixed in version 3.5.99.0

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

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X-Loop: git-admin@x2go.org
Subject: Bug#78: NX_xrandr lacks support from Xrandr 1.2 and higher
Reply-To: Reinhard Tartler <siretart@gmail.com>, 78@bugs.x2go.org
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Date: Thu, 6 Dec 2012 13:39:02 +0100
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From: Reinhard Tartler <siretart@gmail.com>
To: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Cc: 78@bugs.x2go.org
Content-Type: text/plain; charset=ISO-8859-1

On Thu, Dec 6, 2012 at 1:17 PM, Mike Gabriel
<mike.gabriel@das-netzwerkteam.de> 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.

In that case I'm happy to confirm that your "workaround" does not fix
anything in Kubuntu 12.10 nor when upgrading to raring.

>
> If you disable the LD_LIBRARY_PATH code for Xrandr (x2goruncommand), then
> you will find regularly kwin crashes on KDE in precise+.

This also happens with this workaround.

What does help, however, is downgrading the libxfixes3 package to the
version in oneiric.

-- 
regards,
    Reinhard

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