https://bugs.freedesktop.org/show_bug.cgi?id=102646
--- Comment #111 from magist3r magist3r@gmail.com --- (In reply to tempel.julian from comment #110)
(In reply to magist3r from comment #109)
My patch fixes a bug that breaks this behavior when OverDrive mask is enabled, nothing more.
It unfortunately also forces my single display 1440p 75Hz into maximum VRAM clock.
It's not caused by my patch. Try to disable overdrive mask, revert the patch and you will see the same behavior.