[Bug 93826] 144Hz graphic glitches and bad refresh rate

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93826

--- Comment #25 from Dennis Martin Herbers <dennis.martin.herbers at gmail.com> ---
I've got the same problem with a

Sapphire R9 390 Nitro
ASUS MG279Q

With Windows/Linux+fglrx, 2560x1440 at 144Hz work fine

With Linux+open source stack, it defaults to 2568x1440 at 139Hz with graphical
artifacts due to the 2568 width

With AMDGPU PRO 16.10 only 60Hz was possible, haven't tried AMDGPU PRO 16.20
yet

Using the open source stack and switching to 120Hz with xrandr -r 120 does the
trick and it runs at 2560x1440 at 119Hz without glitches, but it isn't optimal.

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