https://bugs.kde.org/show_bug.cgi?id=483810
Bug ID: 483810
Summary: Dynamically start/stop Xwayland
Classification: Plasma
Product: kwin
Version: unspecified
Platform: Other
OS: Other
Status: REPORTED
Severity: wishlist
Priority: NOR
Component: platform-x11-nested
Assignee: kwin-bugs-n...@kde.org
Reporter: deresi...@protonmail.ch
Target Milestone: ---
SUMMARY
I want to be able to dynamically start and stop Xwayland. It's helpful for
multi GPU VM passthrough since xwayland seems to holds onto my secondary GPU.
If Xwayland could be dynamically started and stopped, I would be able to:
1. Run wayland with Xwayland for X11 only apps
2. Stop Xwayland when I start up my GPU passthrough VM
3. Start Xwayland again so that it only uses the GPU which hasn't been passed
though to my VM
4. When I stop my VM, I can restart Xwayland again and Xwayland can use both
GPUs now
5. All of the above without having to restart kde plasma/kwin_wayland
It might also help with optimus on laptops here:
https://discuss.kde.org/t/is-there-any-way-to-restart-xwayland-without-closing-session-and-restarting-kwin-wayland/1741
Currently, I have removed the --xwayland option for kwin_wayland_wrapper but
this means I don't have support for any X applications at all.
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