Gianluca Interlandi composed on 2025-01-29 20:15 (UTC-0800):
It's not Trinity's or openSUSE's fault: https://bugzilla.opensuse.org/show_bug.cgi?id=1212696 Q965 with modesetting DIX GPU HANG Problem exists in Debian too. https://gitlab.freedesktop.org/xorg/xserver/-/issues/1593k
If I stay away from Q965 (like with Intel Core i5), do I avoid the problem? I did not have this issue on a Dell optiplex 780, which should also have a Q965, with its integrated GPU in openSUSE 15.4.
The problem is only with the Q965 AFAIK.
These are the only 64bit Intel Optiplex models I have hands-on info on, owning all but 755, which my brother has, or 790, belonging to a good buddy: 620 has 945G, Gen3 745 has Q965, Gen4 755 has Q35, Gen3 760 has Q43, Gen4 780 has Q45, Gen4 790 has Q65, which doesn't contain a GPU; Gen5 moved Sandy Bridge GPU to CPU
Whatever other models in the period may have existed I don't know about. Sandy Bridge is where Core i5 first appeared AFAICT.
Make sure the xf86-video-intel rpm is installed and its provided intel DDX display driver in use to avoid the problem.
It is currently not installed, but I will try. How do I make sure the DDX display driver is in use? Do I check it with `lsmod`?
If there is a Xorg.0.log file, it over-amply reports driver in use. Inxi -G also reports loaded display driver.