https://bugs.kde.org/show_bug.cgi?id=463023

            Bug ID: 463023
           Summary: An unknown notification is inexplicably freezing my
                    Plasma shell; logs attached
    Classification: Plasma
           Product: plasmashell
           Version: 5.26.4
          Platform: Archlinux
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: Notifications
          Assignee: plasma-b...@kde.org
          Reporter: mv.horiz...@gmail.com
                CC: k...@privat.broulik.de
  Target Milestone: 1.0

SUMMARY

An unknown notification is inexplicably freezing my Plasma shell; logs attached

Plasma is totally and indefinitely freezing when I receive this notification. I
can't find similar problems by searching the element that I suspect causes the
bug on the Internet. It happens frequently, 0 to 2 times a day and it is really
frustrating and annoying since it forces me to stop without saving any process
currently running on the machine.

STEPS TO REPRODUCE
1. Use KDE Plasma.
2. Receive an undetermined notification.

OBSERVED RESULT

KDE Plasma is eternally freezing and I have to terminate my session through the
console on another tty. I can control the desktop with my mouse and my
keyboard, but the visual output is frozen so I can't see what I'm doing.
When it happens, the notification received is just black, like an empty window
with composition disabled, and approximately 2 seconds after, the freeze
occurs. I checked the logs with journactl every time it happened to see if
particular messages are redundant, and there are. I copy-pasted under
ADDITIONAL INFORMATION the lines wrote in the logs when the bug occurs.

EXPECTED RESULT

Plasma should not freeze like this.

SOFTWARE/OS VERSIONS
Linux kernel: 6.0.12-arch1-1
KDE Plasma Version: KDE Plasma 5.26.4
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.17

ADDITIONAL INFORMATION

Logs associated to the bug:

déc. 12 22:40:23 AHRC-PC plasmashell[6979]: Could not find the Plasmoid for
Plasma::FrameSvgItem(0x559b74765360) QQmlContext(0x559b7180d0e0)
QUrl("file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/global/Globals.qml")
déc. 12 22:40:23 AHRC-PC plasmashell[6979]: Could not find the Plasmoid for
Plasma::FrameSvgItem(0x559b74765360) QQmlContext(0x559b7180d0e0)
QUrl("file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/global/Globals.qml")
déc. 12 22:40:23 AHRC-PC plasmashell[6979]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationItem.qml:222:21:
QML SelectableLabel: Binding loop detected for property "implicitWidth"
déc. 12 22:40:23 AHRC-PC plasmashell[6979]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationItem.qml:222:21:
QML SelectableLabel: Binding loop detected for property "implicitWidth"
déc. 12 22:40:23 AHRC-PC plasmashell[6979]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/NotificationItem.qml:222:21:
QML SelectableLabel: Binding loop detected for property "implicitHeight"

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