Black screen flickering after update to 22.04

Question

I've been using 20.04 and I updated to 22.04. After a few days a black flickering appears randomly, it's very annoying and it didn't happen before. Any idea what might be the cause?

Answer 1

A fix would be to add the following parameters to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub:

i915.enable_dc=0
intel_idle.max_cstate=2

then update GRUB using:

sudo update-grub

You should be flicker-free now!

Source: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970426/comments/24