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@gmail.com> schrieb am Di., 27. Aug. 2024, 10:52:

Then please try to run glxinfo -i (forcing indirect rendering).

Uli


h i <qpile117@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@gmail.com>
Sent: Saturday, August 24, 2024 8:41 PM
To: h i <qpile117@outlook.com>
Cc: x2go-user@lists.x2go.org <x2go-user@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@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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