As the Arch Linux Wiki describes, to fix it I have to disable the Panel Self Refresh (PSR, a power saving feature) by using the kernel parameter i915.enable_psr=0. I’m not sure how to do it, I’ve done a little research and I think I should proceed this way:
Open /etc/default/grub
edit line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash”
add i915.enable_psr=0 in the quotes
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr=0”
save
sudo update-grub
reboot
If that is the correct parameter it should work.
I would add it to the other line:
GRUB_CMDLINE_LINUX= …
That way it only applies to the “normal” initrd - not to the fallback one.
I think you are right.
There is nothing to lose.
You can always edit out that piece at the grub command line should it prevent you to boot at all.
That’s also why it’s better to add it to the other line - so you don’t need to edit but just can boot the fallback option, where it doesn’t apply.
good!
no need to thank me - you found and chose the correct parameter
I just told you where to put it in case it wasn’t working, so it wouldn’t be the default as well.