https://bugs.kde.org/show_bug.cgi?id=522032
Bug ID: 522032
Summary: kwin_wayland using discrete GPU unnecessarily
regression from Plasma 6.6 to 6.7
Classification: Plasma
Product: kwin
Version First 6.7.0
Reported In:
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
DESCRIPTION
Seems to be regression of https://bugs.kde.org/show_bug.cgi?id=496738 after
upgrading from KDE Plasma 6.6 to 6.7 but now with an actual GPU process. On
fresh boot, my discrete GPU `nvidia-smi` on 6.6 is empty, whereas on 6.7
`kwin_wayland` has a small 2MB graphics process on `nvidia-smi` (I have yet to
check if its present before login). This prevents VFIO GPU passthrough from
working. Reddit would also have me believe
https://bugs.kde.org/show_bug.cgi?id=521833 is related
(https://www.reddit.com/r/kde/comments/1ubr1j6/kwin_decided_to_use_my_dgpu_after_update/).
On a side note, I also have issues with plasmashell holding `/dev/nvidia` stuff
open in 6.6, but my workaround was to kill and relaunch plasmashell within my
QEMU hook script. Should I open a separate bug from that? Sorry if this bug
ends up being a dupe.
STEPS TO REPRODUCE
1. Have a laptop with integrated and discrete GPUs.
2. Boot.
3. Notice kwin_wayland GPU process in `nvidia-smi`.
OBSERVED RESULT
kwin_wayland is using the discrete GPU when previously unnecessary.
EXPECTED RESULT
It should not use the discrete GPU and prefer using integrated GPU for
everything.
SOFTWARE/OS VERSIONS
Operating System (available in the Info Center app, or by running `kinfo` in a
terminal window):
KDE Plasma Version: 6.7.0
KDE Frameworks Version: 6.27.0
Qt Version: 6.11.1
ADDITIONAL INFORMATION
--
You are receiving this mail because:
You are watching all bug changes.
