This post seems to confirm your model of laptop has issues with PSR on
Linux:
https://www.reddit.com/r/archlinux/comments/jzhwmv/graphical_glitches_on_arch_running_kde_520_on_new/
so the workaround should be:
i915.enable_psr=0
But please confirm.
** Summary changed:
- [Ice Lake] Incomplete
It looks like this might be a Panel Self Refresh bug. PSR was disabled
in Ubuntu 20.04 but seems to be enabled (sometimes) in newer Ubuntu
releases. So please try disabling it by adding a kernel parameter:
i915.enable_psr=0
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Cha
