[Bug 96868] AMDGPU Tonga only does 2560x1440 at 120hz, switching to 144hz causes display errors, same thing used to happen with fglrx.

https://bugs.freedesktop.org/show_bug.cgi?id=96868

--- Comment #27 from Jonas jojonintendo@tutanota.com --- (In reply to Alex Deucher from comment #26)

Created attachment 131453 [details] [review] possible fix 4/4

This time the issue seems to be completely fixed, at least for me. Even @144Hz the screen works perfectly fine, no flickering whatsoever, and the GPU temperature doesn't rise more than 1ºC, so I guess that it is not "high profile" all the time.

Thank you very much for your hard work, it is really appreciated.