https://bugs.kde.org/show_bug.cgi?id=493085
Bug ID: 493085
Summary: Plasma shell can't start on Wayland - black screen
with cursor
Classification: Plasma
Product: plasmashell
Version: git-stable-Plasma/6.1
Platform: Neon
OS: Linux
Status: REPORTED
Severity: critical
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: o...@geek.co.il
CC: k...@davidedmundson.co.uk
Target Milestone: 1.0
SUMMARY
Running on Neon (jammy stable) rebooting the system after a couple of weeks
with no reboot, and with Plasma fully up to date on Neon stable, at 6.1.5,
after a reboot cannot log in to Plasma on Wayland - after logging in the screen
blinks a few times and we are left with a black screen and a mouse cursor.
There is no "KDE neon is loading" animation.
Looking at the logs from the plasma-plasmashell user service, we get this:
Sep 13 23:27:25 thunderbird systemd[898]: Starting KDE Plasma Workspace...
Sep 13 23:27:25 thunderbird plasmashell[1374]: warning: queue 0x57ebb8fe2820
destroyed while proxies still attached:
Sep 13 23:27:25 thunderbird plasmashell[1374]: wl_registry@34 still attached
Sep 13 23:27:25 thunderbird systemd[898]: Started KDE Plasma Workspace.
Sep 13 23:27:25 thunderbird plasmashell[1374]: kf.plasma.quick: Applet preload
policy set to 1
Sep 13 23:27:25 thunderbird plasmashell[1374]:
file:///usr/share/plasma/plasmoids/org.kde.desktopcontainment/contents/ui/main.qml:195:25:
QML FolderViewDropArea (parent or ancestor of QQuickLayoutAttached): Binding
loop detected for property "minimumWidth"
Sep 13 23:27:25 thunderbird plasmashell[1374]: Toolbox not loading, toolbox
package is either invalid or disabled.
Sep 13 23:27:26 thunderbird kwin_wayland_wrapper[952]: error in client
communication (pid 1374)
Sep 13 23:27:26 thunderbird plasmashell[1374]: [destroyed object]: error 7:
importing the supplied dmabufs failed
Sep 13 23:27:26 thunderbird plasmashell[1374]: The Wayland connection broke.
Did the Wayland compositor die?
Sep 13 23:27:26 thunderbird kioworker[1385]: kf.kio.core.connection: Socket not
connected QLocalSocket::PeerClosedError
Sep 13 23:27:26 thunderbird kioworker[1385]: kf.kio.core: An error occurred
during write. The worker terminates now.
Sep 13 23:27:26 thunderbird systemd[898]: plasma-plasmashell.service: Main
process exited, code=exited, status=255/EXCEPTION
Sep 13 23:27:26 thunderbird systemd[898]: plasma-plasmashell.service: Failed
with result 'exit-code'.
Restarting the shell in X11 works fine.
SOFTWARE/OS VERSIONS
This is kinfo report from the X11 session:
Operating System: KDE neon 6.0
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.8.0-40-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-7820HQ CPU @ 2.90GHz
Memory: 31.2 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 630
ADDITIONAL INFORMATION
This is a Nvidia Optimus device with the nvidia proprietary drivers installed:
$ lspci -k
...
01:00.0 3D controller: NVIDIA Corporation GM107GLM [Quadro M1200 Mobile] (rev
a2)
Subsystem: Dell GM107GLM [Quadro M1200 Mobile]
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
...
I'm not sure if this is related, but IIUC the "dmabuf" suggests so.
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