Wed Sep 26, 2018 1:31 am
Does it exhibit the same behaviour with the OpenGL driver disabled or using the other mode?
I have a couple of 5 inch screens that I must use fake KMS for. If I use full KMS, the screen duplicates itself vertically, is patchy and full of white noise. It looks similar to an out of tune UHF TV.
Google is ubiquitous - learn to use it!
https://opensource.com/life/16/10/how-ask-technical-questions