After Ubuntu 24.04 upgrade, Firefox has no issues while in Chrome, every full screen in YouTube and in one other website fills the screen with green and yellow horizontal lines. Looks like:
An attempt to take a screenshot briefly returns to a frozen normal screen.
Some other programs in full screen also result in the same yellow/green striped screen: VLC player and Visual Studio Code; while others such as Stremio have no issue with full screen.
Connecting an external screen negates the problem in all programs I checked (Chrome and VLC), full screen goes without problem both on the main and on the secondary screen. Disconnecting the external screen results in going back to the yellow/green stripes when in full screen.
I have asked about it in Chrome support.google in September, but have not received a reply.
For Chrome, I've tried: disabling Chrome extensions, disabling hardware acceleration, clearing cache and cookies, and reinstalling Chrome; but I saw no improvement.
I've tried to figure out what GPU drivers I have for my Intel® UHD Graphics 620 (WHL GT2). I followed the Intel instructions from here, but reached a dead end. 'clinfo' shows number of platforms 0, and I couldn't understand why. 'Software & Updates', in the tab for 'Additional Drivers' says that I do not have any proprietary drivers drivers in use and no additional drivers (It is empty).
I did not find questions about the same problem. Did anyone else encounter a similar problem and what have they tried? I am not sure what to check, and will appreciate any help and suggestions
The next thing I would fix is any firmware updates for the mobo and gpu.
I ran into the exact same issue on a Dell laptop my sister has also running 24.04 with Intel UHD graphics. She has poor eyesight so she had set the resolution to 1920x1080 with 125% scaling although the native display resolution is 3840x2160.
After trying a couple of boot options for the i915 driver that did not resolve the issue I simply set her resolution to the native 4k resolution and then upped the scaling to 250%.
This completely resolved the issue.