[X2Go-User] x2go glx issue in Ubuntu 22.04

[Ulrich Sibiller]

Awesome, thanks for the update!

h i <qpile117 at outlook.com> schrieb am Mi., 28. Aug. 2024, 06:36:

> Okay,
>
> Did some more digging.
>
> Based on the below link, it mentions the classic drivers have been
> replaced by 'amber'. They are included with the Ubuntu 22.04, but not used
> by default.
>
> Mesa's Classic Drivers Have Been Retired - Affecting ATI R100/R200 & More
> - Phoronix <https://www.phoronix.com/news/Mesa-Classic-Retired>
>
> Therefore, I installed libglx-amber0
>
> sudo apt-get install libglx-amber0
>
>
> Then I added the following to my .bashrc file in my home directory:
>
> export __GLX_VENDOR_LIBRARY_NAME=amber
>
>
> Here is the output of
>
> glxinfo | grep Open
>
> glxinfo |grep Open
> OpenGL vendor string: Mesa
> OpenGL renderer string: llvmpipe (LLVM 15.0.7, 256 bits)
> OpenGL version string: 4.5 (Compatibility Profile) Mesa
> 23.2.1-1ubuntu3.1~22.04.2
> OpenGL shading language version string: 4.50
> OpenGL context flags: (none)
> OpenGL profile mask: compatibility profile
> OpenGL extensions:
>
>
> Now, glxgears and glxinfo commands now work.
>
> In the past, we didn't have to do this with Ubuntu 20.04, but with 22.04,
> this is what I had to do to get it to work. Haven't run other software just
> yet, but at least those basic commands now work again.
>
>
> h.
> ------------------------------
> *From:* x2go-user <x2go-user-bounces at lists.x2go.org> on behalf of h i <
> qpile117 at outlook.com>
> *Sent:* Tuesday, August 27, 2024 2:31 PM
> *To:* Ulrich Sibiller <ulrich.sibiller at gmail.com>
> *Cc:* x2go-user at lists.x2go.org <x2go-user at lists.x2go.org>
> *Subject:* Re: [X2Go-User] x2go glx issue in Ubuntu 22.04
>
> Tried, but no success.
>
> I think it might relate to the following identified:
>
> https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/2017762  and Mesa's
> Classic Drivers Have Been Retired - Affecting ATI R100/R200 & More -
> Phoronix <https://www.phoronix.com/news/Mesa-Classic-Retired>
>
> I have another server where everything works fine for ubuntu 20.04.
>
> The current problem is with ubuntu 22.04. The main problem is Opengl. Read
> about mesa amber as an alternative. Using a Dell Poweredge server with
> Integrated Matrox G200eW3 Graphics Controller
>
> It is related somehow to x2go because if use the glxinfo command directly
> on the server, the command works. Glxgears works.
>
> Additionally, xclock works when I connect remotely using x2go. It is just
> glxgears, glxinfo, etc. glx related commands.
>
> h.
> ------------------------------
> *From:* Ulrich Sibiller <ulrich.sibiller at gmail.com>
> *Sent:* Monday, August 26, 2024 9:55 PM
> *To:* h i <qpile117 at outlook.com>
> *Cc:* x2go-user at lists.x2go.org <x2go-user at lists.x2go.org>
> *Subject:* Re: [X2Go-User] x2go glx issue in Ubuntu 22.04
>
>
> Maybe some of these mesa xlib vars might help, too:
> https://docs.mesa3d.org/envvars.html#mesa-xlib-driver-environment-variables
>
> Uli
>
> Ulrich Sibiller <ulrich.sibiller at gmail.com> schrieb am Di., 27. Aug.
> 2024, 10:52:
>
> Then please try to run glxinfo -i (forcing indirect rendering).
>
> Uli
>
> h i <qpile117 at outlook.com> schrieb am Di., 27. Aug. 2024, 01:31:
>
> Yes,
>
> Thank you for your response.
>
> I tried the following:
>
> export  LIBGL_ALWAYS_SOFTWARE=1
> export  LIBGL_ALWAYS_INDIRECT=1
>
> However, still no success.
>
> glxgears
> Error: couldn't get an RGB, Double-buffered visual
>
> glxinfo
> name of display: :50
> Error: couldn't find RGB GLX visual or fbconfig
>
>
> h.
> ------------------------------
> *From:* Ulrich Sibiller <ulrich.sibiller at gmail.com>
> *Sent:* Saturday, August 24, 2024 8:41 PM
> *To:* h i <qpile117 at outlook.com>
> *Cc:* x2go-user at lists.x2go.org <x2go-user at lists.x2go.org>
> *Subject:* Re: [X2Go-User] x2go glx issue in Ubuntu 22.04
>
>
> Have you tried settting mesa environment variables like
> LIBGL_ALWAYS_SOFTWARE and LIBGL_ALWAYS_INDIRECT? (Please google the exact
> names, cannot check myself right now.)
>
> Uli
>
> h i <qpile117 at outlook.com> schrieb am Sa., 24. Aug. 2024, 22:55:
>
> Hello,
>
> Worked with x2go and Ubuntu 20.04 with no issues with glx. Commands such
> as glxinfo glxgears worked.
>
> Using a Dell Poweredege Server, we have installed 22.04 and now commans
> like glxinfo, glxgears do not work connecting remotely to the server using
> x2goclient
>
> glxinfo
> name of display: :50
> Error: couldn't find RGB GLX visual or fbconfig
>
> glxgears
> Error: couldn't get an RGB, Double-buffered visual
>
> Mesa 22.0 and higher seems to be the issue.
>
> Reading online, Ubuntu 22.04 no longer supports 'classic drivers' any
> longer. However, there is a 'mesa-amber' that could potentially resolve
> this?
>
> Has anyone had any success using mesa-amber and getting commands like
> glxinfo, glxgears to work in Ubuntu 22.04? I tried the suggested
> downgrading to Mesa 21 and that just opened up another can worms with
> dependency issues.
>
> Any help would greatly be appreciated.
>
> Thanks,
> h.
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>
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