https://bugs.kde.org/show_bug.cgi?id=481716
fililip <t...@nitrosubs.live> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|5.93.0 |6.0.0
--- Comment #9 from fililip <t...@nitrosubs.live> ---
Alright, I tested kwin from master today and the issue still seems to exist -
very high (33-40%) one CPU thread usage & occasional stuttering when simply
compositing with an app open (VRRTest).
I've also tried blacklisting amdgpu, turning on/off 64-bit decoding in UEFI,
there's nothing I can do to make it work.
Additionally, I tested xfce4 (xorg), just for fun, and found out that it works
just fine.
I'd say this is definitely Nvidia's fault. They seem to have issues with
Wayland compositing in general. (At least for me.)
What's interesting is that using nouveau does not help.
I'll try to report the issue upstream. If nothing gets fixed, that's not a big
deal for me, I still have the AMD card for presentation. At least offloading
works just fine, and I have CUDA support.
Thank you very much for your effort and sorry for the trouble.
(I have another observation: multi-monitor VRR doesn't seem to work with
Nvidia. The stutters still happen with one screen (it's ok with fullscreen
though, but the CPU usage is frustrating nonetheless), but VRR breaks
completely for me if I attach my non-VRR secondary display to the mix. This is
probably not related to the stuttering bug though, so feel free to close this
one.)
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