The lower part of my screen is updated one frame earlier than the upper part. I was able to isolate the error to the HDMI output of my laptop. The screen or cable is not broken, as I don't get these errors with other connected devices.
I am assuming it is some hardware defect. Does anyone know what it could be and how I could fix it?
Here are a few pictures that show the problem: pixelfed
Solved:
Ok, it seems to have been a software problem. That had to do with the sync. I have installed ubuntu on the laptop for now and everything works again.
Some update seems to have shot something. I am now using a LTS version.
Edit:
I want to add that this problem occurred from one day to the next.
I'm using Jellyfin as playback, but this effect even occurs when moving windows over the screen