https://bugs.kde.org/show_bug.cgi?id=462451
Bug ID: 462451
Summary: Plasma on Kwin Wayland doesn't start with virgl on
qemu
Classification: Plasma
Product: kwin
Version: 5.26.3
Platform: Other
OS: Other
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: andre.vma...@gmail.com
Target Milestone: ---
SUMMARY
Plasma Wayland inside a virgl qemu VM doesn't work. We get only a black screen
just with cursor (indicating kwin_wayland did get launched correctly), but
plasma didn't start.
With Yakuake's autostart, we can see the terminal window, and inspecting the
logs, some errors like:
kwin_wayland[1145]: error in client communication (pid 1278)
plasmashell[1278]: [destroyed object]: error 6: invalid stride 10240 for plane
0
STEPS TO REPRODUCE
1. Install quickemu
2. quickget kdeneon user
3. quickemu --vm kdeneon-user.conf (-device virtio-vga-gl -display sdl,gl=on)
4. On the VM, go to SDDM config, switch off autologin, apply and logout
5. Login to Plasma Wayland session
OBSERVED RESULT
Black screen with only cursor
EXPECTED RESULT
Plasma Wayland session
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon User 20221117-0714
KDE Plasma Version: 5.26.3
KDE Frameworks Version: 5.100.0
Qt Version: 5.15.7
ADDITIONAL INFORMATION
Tested with quickget/qemu on current NixOS unstable, but from qemu's small
surface, I suppose it should happen when running over any distro.
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