[Warning] Ubuntu 21.10 Wayland issues

[Rob_H]

I fixed the stuttering by doing the following:

1. Updated /etc/default/grub by adding i915.enable_psr=0 to GRUB_CMDLINE_LINUX_DEFAULT. Example:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr=0"

2. Ran sudo update-grub
3. Rebooted.

This was mentioned in the Fedora 34 post related to Trackpad Cursor Lag / Vertical Screen Tearing.