Application: plasmashell (6.6.5)

ApplicationNotResponding [ANR]: false
Qt Version: 6.11.1
Frameworks Version: 6.26.0
Operating System: Linux 7.0.11-1-default x86_64
Windowing System: X11
Distribution: "openSUSE Tumbleweed"
DrKonqi: 6.6.5 [CoredumpBackend]

-- Information about the crash:
2026-06-08e
The Kde Plasma desktop was found broken after re-login into the screen-locked computer. The Plasma Panel had disappeared. The computer screen was completely black, with the exception of pre-existing Kde application windows. There was no coredump from plasmashell at that time.

The Kde Plasma shell was restarted with KRunner "plasmashell --replace", which did generate a coredump and started Drkonqi.

Operating System: openSUSE Tumbleweed 20260605
KDE Plasma Version: 6.6.5
KDE Frameworks Version: 6.26.0
Qt Version: 6.11.1
Kernel Version: 7.0.11-1-default (64-bit)
Graphics Platform: X11
Processors: 22 × Intel® Core™ Ultra 7 155H
Memory: 128 GiB of RAM (125.1 GiB usable)
Graphics Processor: Intel® Arc
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: NUC14RVH-B

Before this problem:
Installed current software updates with zypper dup
Rebooted the host into Kde Plasma desktop.
Worked on the computer as usual.
Kept the computer running with the Kde screen locked (Screen Locking), and the external display switched off.

Other information:
The configured keyboard shortcuts were still working. It was possible to start Kde applications. However, the started Kde applications were not working completely successfully; probably due to the missing Kde Plasma desktop Panel and broken Plasma desktop display.

The computer has SELinux active, with "SELINUX=permissive".

The available software updates were installed shortly before this problem.

Like
chris@suse8:~/tmp
$> coredumpctl --reverse
TIME                            PID  UID  GID SIG     COREFILE EXE                       SIZE
Mon 2026-06-08 22:47:06 CEST   3799 1000 1000 SIGSEGV present  /usr/bin/plasmashell     30.8M

Bye

The crash can be reproduced sometimes.

-- Backtrace (Reduced):
#5  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::get (this=0x8, this=<optimized out>) at /usr/include/qt6/QtCore/qscopedpointer.h:111
[...]
#8  QQuickItem::setAcceptedMouseButtons (this=this@entry=0x0, buttons=buttons@entry=...) at /usr/src/debug/qtdeclarative-everywhere-src-6.11.1/src/quick/items/qquickitem.cpp:8313
#9  0x00007fdb98f820da in Breeze::WindowManager::registerQuickItem (this=0x561fdff30150, item=0x561fe0bdb290) at /usr/src/debug/breeze-6.6.5/kstyle/breezewindowmanager.cpp:175
#10 Breeze::WindowManager::registerQuickItem (this=0x561fdff30150, item=0x561fe0bdb290) at /usr/src/debug/breeze-6.6.5/kstyle/breezewindowmanager.cpp:167
#11 Breeze::Style::isQtQuickControl (option=<optimized out>, widget=<optimized out>, this=0x561fdfde9420) at /usr/src/debug/breeze-6.6.5/kstyle/breezestyle.cpp:8548
#12 Breeze::Style::isQtQuickControl (this=0x561fdfde9420, option=<optimized out>, widget=<optimized out>) at /usr/src/debug/breeze-6.6.5/kstyle/breezestyle.cpp:8543
#13 0x00007fdb98f6b904 in Breeze::Style::pixelMetric (this=<optimized out>, metric=<optimized out>, option=0x561fe4e2d390, widget=0x0) at /usr/src/debug/breeze-6.6.5/kstyle/breezestyle.cpp:690
#14 0x00007fdb64684c07 in KQuickStyleItem::initStyleOption (this=this@entry=0x561fe0bdb290) at /usr/src/debug/qqc2-desktop-style-6.26.0/plugin/kquickstyleitem.cpp:647
#15 0x00007fdb6468af72 in KQuickStyleItem::updateRect (this=0x561fe0bdb290) at /usr/src/debug/qqc2-desktop-style-6.26.0/plugin/kquickstyleitem.cpp:1418
#16 0x00007fdb6468d510 in KQuickStyleItem::geometryChange (this=0x561fe0bdb290, newGeometry=..., oldGeometry=...) at /usr/src/debug/qqc2-desktop-style-6.26.0/plugin/kquickstyleitem.cpp:2147
#17 0x00007fdba1870711 in QQuickItem::setWidth (this=0x561fe0bdb290, w=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-6.11.1/src/quick/items/qquickitem.cpp:7573
#18 0x00007fdb997bcb6b in QQuickTextFieldPrivate::resizeBackground (this=0x7fdb940c9000) at /usr/src/debug/qtdeclarative-everywhere-src-6.11.1/src/quicktemplates/qquicktextfield.cpp:158
#19 0x00007fdba1870dd6 in QQuickItem::setImplicitHeight (this=0x561fe45bbcb0, h=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-6.11.1/src/quick/items/qquickitem.cpp:7842
#20 0x00007fdba10e6f70 in QQmlPropertyData::writeProperty (this=<optimized out>, target=<optimized out>, value=<optimized out>, flags=...) at /usr/src/debug/qtdeclarative-everywhere-src-6.11.1/src/qml/qml/qqmlpropertydata_p.h:429
#21 0x00007fdba1105287 in GenericBinding<6>::write (this=0x561fe0d38fd0, result=0x7ffce35863e0, type=..., isUndefined=<optimized out>, flags=...) at /usr/src/debug/qtdeclarative-everywhere-src-6.11.1/src/qml/qml/qqmlbinding.cpp:218
#22 0x00007fdba10ffca2 in QQmlBinding::doUpdate (this=0x561fe0d38fd0, watcher=..., flags=..., scope=<optimized out>) at /usr/src/debug/qtdeclarative-everywhere-src-6.11.1/src/qml/qml/qqmlbinding.cpp:705


Reported using DrKonqi