Bug 509340

Summary:	Plasma shell crash, multi-screen configuration issue
Product:	[Plasma] plasmashell	Reporter:	Oded Arbel <oded>
Component:	generic-crash	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	kde
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	6.4.4
Target Milestone:	1.0
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:	https://crash-reports.kde.org/organizations/kde/issues/246204/events/b72f572d24574a798e8c85e470570c43/
Attachments:	New crash information added by DrKonqi

Description Oded Arbel 2025-09-10 08:42:28 UTC

Application: plasmashell (6.4.4)

ApplicationNotResponding [ANR]: false
Qt Version: 6.9.2
Frameworks Version: 6.17.0
Operating System: Linux 6.14.8-061408-generic x86_64
Windowing System: Wayland
Distribution: KDE neon User Edition
DrKonqi: 6.4.4 [CoredumpBackend]

-- Information about the crash:
This is likely related to bug #509282 - I have an interesting kscreen configuration and when trying to debug stuff around it, Plasma started crashing repeatedly when disconnected external screens. I tried to workaround both issues by removing the plasma configuration file in ~/.config , but not the kscreen configuration files in ~/.local/share/kscreen - and then I got this crash on login

The crash can be reproduced every time.

-- Backtrace (Reduced):
#6  0x00007b65815e10da in QJSEngine::handle (this=0x0) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/jsapi/qjsengine.h:320
#7  QQmlEnginePrivate::getV4Engine (e=0x0) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/qml/qqmlengine_p.h:334
#8  QQuickStackElement::initialize (this=this@entry=0x5904bad48470, requiredProperties=requiredProperties@entry=0x0) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/quicktemplates/qquickstackelement.cpp:210
#9  0x00007b65815e1c2e in QQuickStackElement::load (this=0x5904bad48470, parent=0x5904bb810c20) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/quicktemplates/qquickstackelement.cpp:180
#10 0x00007b65815e07f7 in QQuickStackView::replace (this=0x5904bb810c20, args=0x7ffc9c04c1e0) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/quicktemplates/qquickstackview.cpp:910
#11 0x00007b65815e3017 in QQuickStackView::qt_metacall (this=0x5904bb810c20, _c=<optimized out>, _id=18, _a=0x7ffc9c04c200) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/obj-x86_64-linux-gnu/src/quicktemplates/QuickTemplates2_autogen/include/moc_qquickstackview_p.cpp:725
#12 0x00007b6589ab02da in QQmlObjectOrGadget::metacall (this=0x7ffc9c04c1c0, type=QMetaObject::InvokeMetaMethod, index=<optimized out>, argv=<optimized out>) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/qml/qqmlobjectorgadget.cpp:14
#13 0x00007b6589ba5b8a in operator() (__closure=<optimized out>) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/jsruntime/qv4qobjectwrapper.cpp:3070
#15 QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=<optimized out>, argv=0x7b6551bbb560, argc=3) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/jsruntime/qv4qobjectwrapper.cpp:3064
#16 0x00007b6589ce1225 in QV4::Moth::VME::interpret (frame=0x5904bb810c20, frame@entry=0x7ffc9c04c640, engine=0x5904b81e3a80, code=0x7b6551bbb548 " \244\222Qe{") at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/jsruntime/qv4vme_moth.cpp:798
#17 0x00007b6589ce4601 in QV4::Moth::VME::exec (frame=<optimized out>, engine=<optimized out>) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/jsruntime/qv4vme_moth.cpp:487
#18 0x00007b6589c10697 in QV4::Moth::VME::exec (engine=0x5904b81e3a80, frame=0x7ffc9c04c640) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/jsruntime/qv4engine_p.h:830
#19 qfoDoCall (fo=<optimized out>, thisObject=<optimized out>, argv=<optimized out>, argc=<optimized out>) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/jsruntime/qv4functionobject.cpp:527
#20 0x00007b6589b9d657 in QV4::QObjectSlotDispatcher::impl (which=<optimized out>, this_=<optimized out>, receiver=<optimized out>, metaArgs=<optimized out>, ret=<optimized out>) at /usr/src/qt6-declarative-6.9.2-0zneon+24.04+noble+release+build61/src/qml/jsruntime/qv4jscall_p.h:81
#21 0x00007b6588946e39 in QtPrivate::QSlotObjectBase::call (a=0x7ffc9c04c990, r=<optimized out>, this=0x5904b8d97ab0, this=<optimized out>, r=<optimized out>, a=<optimized out>) at /usr/src/qt6-base-6.9.2-0zneon+24.04+noble+release+build121/src/corelib/kernel/qobjectdefs_impl.h:461
#22 doActivate<false> (sender=0x5904bb7c8790, signal_index=35, argv=0x7ffc9c04c990) at /usr/src/qt6-base-6.9.2-0zneon+24.04+noble+release+build121/src/corelib/kernel/qobject.cpp:4157


Reported using DrKonqi

Comment 1 Oded Arbel 2025-09-10 08:42:29 UTC

Created attachment 184858 [details]
New crash information added by DrKonqi

DrKonqi auto-attaching complete backtrace.

Comment 2 Oded Arbel 2025-09-10 09:03:46 UTC

I'm still getting this crash after deleting (while logged out) the following files and folders and then logging back in

.config/plasmashellrc
.config/plasma-org.kde.plasma.desktop-appletsrc
.config/plasmarc .local/share/kscreen/
.config/kwinrc
.config/kwinoutputconfig.json

Comment 3 David Edmundson 2025-09-11 08:15:34 UTC

Lets keep tracking at https://crash-reports.kde.org/organizations/kde/issues/240550/?

*** This bug has been marked as a duplicate of bug 509192 ***

Comment 4 Oded Arbel 2025-09-11 11:37:34 UTC

It keeps happening often when I unlock my screen - Plasma crashes, restarts and then immediately crashes again (same back trace as posted above) and then starts again and looks fine.

(In reply to David Edmundson from comment #3)
> Lets keep tracking at
> https://crash-reports.kde.org/organizations/kde/issues/240550/?

I don't have access to that system. It says "login with Gitlab", and I thought that it means invent.kde.org (where I have an account), but clicking it brings me to an error page.