I will describe you the problem I am trying to solve. I have a desktop computer with a nvidia card (G92 [GeForce 8800 GTS 512]) which was running a previous version of Ubuntu and still runs jelly 22.04.
In previous version of Ubuntu happened the following:
With a fresh installation of ubuntu, my screen was freezing occasionally. I have found that the problem was the graphics card drivers, so I installed Nvidia drivers and in the Settings I enabled proprietary Graphics drivers to Nvidia. This setting worked fine. No freezing anymore and screen's resolution was optimal.
Lately I did an upgrade to Jelly-Fish Ubuntu 22.04. The screen resolution changed to 1024 x 768 (4:3) which disturbs me. I tried several workarounds to correct it but nothing worked. So I did a fresh installation of Ubuntu Jelly-Fish 22.04 and I returned to the correct monitor settings which are the following
Samsung Electric Company 24"
My setting is 1920 x 1200 (16:10) at 59,95 Hz
But the system kept freezing so I advanced to Nvidia drivers installation to enable proprietary drivers but this didn't work. Resolution changed again to 1024 x 768 (4:3) and I don't manage to correct resolution.
xrandr gives me the following output
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768
default connected primary 1024x768+0+0 0mm x 0mm
From settings tab named "about" I see the installed graphics is llvmpipe (LLVM 13.0.1 256 bits).
I don't have deep knowledge on how to fix this. I would like firstly to correct the gamma problem, and then correct the resolution. If the system freezes again, I would like to enable Nvidia drivers as proprietary (a recipe that was working fine before the update).
Any help would be appreciated.
