Bug#1026881: x2goserver: unsuable desktop, GLXUnsupportedPrivateRequest in xsessionlog, X11 issue?

[Peter Barth <pb@pobv.de>]

Hi,

thank you very much for confirming the problem.

I have also tried with the cinnamon desktop and this also failed to work 
properly with (an updated) debian-testing. In addition i tried with a
linux mint release (21.1) and mate which worked fine.

=== mint 21.1
$ dpkg -l | grep 'ii  mate-desktop '
ii  mate-desktop                               1.26.0-1 
                 amd64        Library with common API for various MATE 
modules
$ dpkg -l | grep 'ii  xserver-xorg '
ii  xserver-xorg                               1:7.7+23ubuntu2 
                 amd64        X.Org X server
===

=== debian testing
$ dpkg -l | grep 'ii  mate-desktop '
ii  mate-desktop                                  1.26.0-1 
         amd64        Library with common API for various MATE modules
$ dpkg -l | grep 'ii  xserver-xorg '
ii  xserver-xorg                                  1:7.7+23 
         amd64        X.Org
===

which appear to be rather similar, with debian testing not working and
mint 21.1 working fine. Which upstream would it be? Might it not be
related to something in debian testing?

I can try different things with logs in both environments and can 
install something on both and break both, if instructed and if it
may be helpful for a maintainer.

Best regards