GTX 750ti stopped working Kubuntu 22.04.3

[kalpana]

Hello,

I put together a system with an i5 4460 and a GTX 750ti for my nephews to use. Everything worked just fine when I put it together and tested it. However, once I took it to them and got it up and running I started having graphical issues immediately. As I started it up I noticed that the graphics and text on the login screen was enormous and it remained like that after login. I checked the resolution and it was correct. The GUI sizing issue them solved itself somehow (but not in the login screen) and I figured all was well. I fired up Steam and tried several games with no problems. Then, suddenly, the signal to the screen died and I had to do a hard reboot (hadn't set up the keyboard shortcut for video reset.) After this nothing with 3d graphics work at all. Most games fail to launch and those that do run at like 1 fps.

I have tried several driver versions and I have tried reverting to older kernels but still the same. I then did a clean reinstall and was greeted with the giant GUI once more. Didn't have time to test games but something is clearly very wrong.

So I'm wondering if there's some issue with the GTX 750ti and (K)ubuntu 22.04(.3) or with the Nvidia drivers?

I'm thinking perhaps if I were to install the original Kubuntu 22.04 with the older and more tried and true kernel 5.15, I'd have better luck. However, I cannot find it anywhere. The links for the older 22.04 versions at kubuntu.org all lead to 22.04.3. Is it available anywhere?

Otherwise, does anyone recognize this issue and perhaps know of a solution (staying at the current version)?

Thanks in advance.