TearFree breaks after entering fullcreen in pretty much every program

Submitted by aufkrawall @aufkrawall

Assigned to Chris Wilson @ickle

Link to original bug (#111816)

Description

TearFree works in general, scrolling in Firefox is free of tearing with it without compositor.
But as soon as I enter fullscreen mode, it is broken afterwards.

This is on Gemini Lake and
recent xorg-server-git master, xf86-video-intel-git master

Attaching dmesg.log and xorg.log.

I reported a similar issue for xf86-video-amdgpu which got fixed:
https://bugs.freedesktop.org/show_bug.cgi?id=109364