Comment 23 for bug 1844384

I did some additional tests:

- First by testing with the future kernel under development (5.4 RC0) and I found the same problem (no improvement)

- I searched the web and found similar problems with other people like for example here:
https://bugzilla.redhat.com/show_bug.cgi?id=1723167
https://ubuntuforums.org/showthread.php?t=2339302

Following their recommendation, I therefore disabled the Intel PSR function in the grub configuration ("i915.enable_psr=0" in /etc/default/grub) so that the kernel does not activate it at boot time and indeed with this feature disabled, I no longer have the display corruption problem.

The problem is that this feature is used to last longer on battery, so it's something useful on a laptop (especially since it worked well with older kernels <5.2).

Could you please fix the display corruption problem without disabling this power saving feature for cpu intel.

In the meantime, I leave this feature disabled because display corruption is too annoying.

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