This only seems to happen on github for some reason, so far. But even if I take a screenshot and view the page, it does the exact same thing. So I assume it has to do with the color, which seems indicative of some kind of problem.
Issue: When I go to github in particular, after about half a second suddenly these vertical lines appear over the entire screen, top to bottom, including the browser and Gnome top bar. After doing this, if I leave the page and view something else – whether another web page or some other application – the screen will flicker for a several seconds before returning to normal.
Outside of this situation, I basically never have any other problems with this or monitor sync or any of that.
I took a photo with my camera that I was prepared to share, but the forums aren’t allowing me to post any links or images. So I hope this information is enough to get across what’s happening. On my 4k screen, each line is a few pixels thick. Again, this happens even if I just view a screenshot of the page, so it doesn’t seem to have to do with the web page itself.
This has also been the case since I clean-installed Manjaro recently, and has persisted after driver and kernel updates.
DE: Gnome
CPU: i5 7600K
GPU: Nvidia GTX 1080, Driver: 495.44
Kernel: 5.15.2-2