https://bugs.kde.org/show_bug.cgi?id=462551
Zamundaaa <xaver.h...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|wayland-generic |platform-drm
--- Comment #6 from Zamundaaa <xaver.h...@gmail.com> ---
I see, it's falling back to CPU copy to make it work on the secondary GPU,
which is it pretty slow. You should be able to verify that by looking at the
CPU usage: when you put a video on the external monitor, it'll go up.
I'm not sure how this could be cause by this update though; there's no commits
related to multi gpu in 5.26.4 that weren't also in 5.26.3, and NVidia has
never supported the fast path that KWin uses to make multi-gpu work well.
Did you maybe also change the boot GPU somewhere? NVidia as primary and Intel
as secondary should be fast, only the reverse will be slow.
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