Odd jitter on pc when watching videos or playing games

It seems it is a bug in ddcutil. See this post:

I think the consensus seems to be to downgrade ddcutil to a previous version seems to fix the bug for now until a fixed version is out.

Looks like ddcutil 2.1.0-3 fixed the bug for some, yet somehow introduced the bug to other systems. Try version 2.1.0-2 may fix it or 2.1.0-1 ?