https://bugs.kde.org/show_bug.cgi?id=471517
Stefan Springer <stefansp...@gmail.com> changed:
What |Removed |Added
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CC| |stefansp...@gmail.com
--- Comment #16 from Stefan Springer <stefansp...@gmail.com> ---
That f1f7e2697d1ac4ebe9099006775717e5fd6f5777 commit totally wrecks VRR,
especially when using DisplayPort in my case. Selectively reverting it fixes
the issue with HDMI (which was less affected) and DP.
My screen will flicker whenever the refresh rate goes below a certain threshold
(~78fps for me w/ Gsync pendulum and MangoHud enforcing VRR). It will also do
so seemingly random when operating the computer and occasionally produces a
glitched bar on the botton of the screen, showing elements that should be on
the top (i.e like my top panel).
Just guessing here, but could it be that some timing or buffer handling is off
here or that this was data already belonging to the next frame placed at some
weird offset?
!Anyhow, I'd recommend reverting f1f7e2697d1ac upstream ASAP, since for anyone
affected, their GUI becomes practically unusable and the flickering may cause
seizures in people with epilepsy. Some may also think that they got HW damage…
Thank you!
Plasma 5.27.7, Gentoo, tried Kernel 6.1.45-lts, 6.3.13 and 6.4.10.
Radeon 6800XT, Mesa 23.1.5, libdrm 2.4.115
AOC Q24G2 1440p@165Hz (144Hz on HDMI, which somehow made the flickers happen
less often).
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