https://bugs.kde.org/show_bug.cgi?id=498837
Bug ID: 498837
Summary: A notification Xwayland has crashed was sometimes
shown when Plasma 6.2.90 started even though Xwayland
didn't appear to have crashed
Classification: Plasma
Product: kwin
Version: 6.2.90
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Keywords: qt6
Severity: normal
Priority: NOR
Component: xwayland
Assignee: kwin-bugs-n...@kde.org
Reporter: matt.fagn...@bell.net
Target Milestone: ---
SUMMARY
I started Plasma 6.2.90 on Wayland using the Fedora Rawhide KDE live images
Fedora-KDE-Desktop-Live-Rawhide-20250113.n.0.x86_64.iso and
Fedora-KDE-Desktop-Live-Rawhide-20250118.n.0.x86_64.iso in QEMU/KVM VMs in
GNOME Boxes and on bare metal. A notification Xwayland has crashed was
sometimes shown when Plasma 6.2.90 started even though Xwayland didn't appear
to have crashed. I saw this notification several times out of about 35 times I
started Plasma. The notification popup had KWin Window Manager as its title so
I'm assigning this to kwin. coredumpctl and the journal didn't show any
crashes. ps aux | grep Xwayland showed Xwayland was running. Xwayland might not
have started by the time the check for the notification was done at times in a
race condition. I didn't see this notification with Plasma 6.2.5 or earlier.
STEPS TO REPRODUCE
1. Download the Fedora Rawhide live image
Fedora-KDE-Desktop-Live-Rawhide-20250118.n.0.x86_64.iso from
https://koji.fedoraproject.org/koji/buildinfo?buildID=2629884
2. In a Fedora 41 KDE installation, start GNOME Boxes
3. Boot Fedora-KDE-Desktop-Live-Rawhide-20250118.n.0.x86_64.iso in a QEMU/KVM
VM in GNOME Boxes with UEFI enabled, 3D acceleration enabled, and 4 GiB RAM.
4. If the notification wasn't shown, log out of Plasma in the VM and log in to
Plasma until it does. Alternatively, reboot the VM until the notification
appears.
OBSERVED RESULT
A notification Xwayland has crashed was sometimes shown when Plasma 6.2.90
started even though Xwayland didn't appear to have crashed
EXPECTED RESULT
No notification about Xwayland crashing should've been shown.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Rawhide/42
KDE Plasma Version: 6.2.90
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
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