Bug 493088

Summary:	Display settings crash in KPageWidget::~KPageWidget() when I try to enable external monitor
Product:	[Applications] systemsettings	Reporter:	boogs.secret928
Component:	kcm_kscreen	Assignee:	kscreen-bugs-null <kscreen-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	kde, nate, nicolas.fella, plasma-bugs-null
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	6.1.4
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=503491
Latest Commit:		Version Fixed In:
Sentry Crash Report:	https://crash-reports.kde.org/organizations/kde/issues/64876/events/024cc07cf63544a1b3bc064ce02e7918/

Description boogs.secret928 2024-09-13 21:34:39 UTC

Application: systemsettings (6.1.4)

Qt Version: 6.7.2
Frameworks Version: 6.5.0
Operating System: Linux 6.10.9-200.fc40.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora Linux 40 (KDE Plasma)"
DrKonqi: 6.1.4 [CoredumpBackend]

-- Information about the crash:
When I try to enable an external monitor, display settings crashes.

This is a fresh install of Fedora 40.  Everything is defaults.  No other software is installed besides what came with Fedora 40.

This occurred before performing system updates for Fedora 40, and continues to occur now, after performing all system updates for Fedora 40.

The backtrace attached is from after system updates were applied.

System has a high DPI, high resolution, internal screen and a standard DPI 1080p external screen, if that matters.

External screen is attached via HDMI.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Aborted


This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.org/>
Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/systemsettings kcm_kscreen'.
Program terminated with signal SIGABRT, Aborted.
#0  0x00007f271f6a8664 in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f271a05eb00 (LWP 5033))]
Cannot QML trace cores :(
[Current thread is 1 (Thread 0x7f271a05eb00 (LWP 5033))]

Thread 26 (Thread 0x7f26c6a006c0 (LWP 5762)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a57f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f27018a893d in cnd_wait () from /usr/lib64/dri/iris_dri.so
#3  0x00007f270188570b in util_queue_thread_func () from /usr/lib64/dri/iris_dri.so
#4  0x00007f27018a886c in impl_thrd_routine () from /usr/lib64/dri/iris_dri.so
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 25 (Thread 0x7f26d1e006c0 (LWP 5764)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a57f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f27018a893d in cnd_wait () from /usr/lib64/dri/iris_dri.so
#3  0x00007f270188570b in util_queue_thread_func () from /usr/lib64/dri/iris_dri.so
#4  0x00007f27018a886c in impl_thrd_routine () from /usr/lib64/dri/iris_dri.so
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 24 (Thread 0x7f26d34006c0 (LWP 5078)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 23 (Thread 0x7f26df4006c0 (LWP 5068)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 22 (Thread 0x7f2709e006c0 (LWP 5765)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a57f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f27018a893d in cnd_wait () from /usr/lib64/dri/iris_dri.so
#3  0x00007f270188570b in util_queue_thread_func () from /usr/lib64/dri/iris_dri.so
#4  0x00007f27018a886c in impl_thrd_routine () from /usr/lib64/dri/iris_dri.so
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 21 (Thread 0x7f26e9e006c0 (LWP 5320)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a57f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f27018a893d in cnd_wait () from /usr/lib64/dri/iris_dri.so
#3  0x00007f270188570b in util_queue_thread_func () from /usr/lib64/dri/iris_dri.so
#4  0x00007f27018a886c in impl_thrd_routine () from /usr/lib64/dri/iris_dri.so
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 20 (Thread 0x7f26d3e006c0 (LWP 5077)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 19 (Thread 0x7f26d0e006c0 (LWP 5084)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 18 (Thread 0x7f26c60006c0 (LWP 5763)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a57f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f27018a893d in cnd_wait () from /usr/lib64/dri/iris_dri.so
#3  0x00007f270188570b in util_queue_thread_func () from /usr/lib64/dri/iris_dri.so
#4  0x00007f27018a886c in impl_thrd_routine () from /usr/lib64/dri/iris_dri.so
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 17 (Thread 0x7f26c74006c0 (LWP 6522)):
#0  0x00007f271f71c87d in poll () from /lib64/libc.so.6
#1  0x00007f2709f21ab6 in poll_func () from /lib64/libpulse.so.0
#2  0x00007f2709f0b424 in pa_mainloop_poll () from /lib64/libpulse.so.0
#3  0x00007f2709f15d33 in pa_mainloop_iterate () from /lib64/libpulse.so.0
#4  0x00007f2709f15df8 in pa_mainloop_run () from /lib64/libpulse.so.0
#5  0x00007f2709f269ff in thread () from /lib64/libpulse.so.0
#6  0x00007f27095b48fb in internal_thread_func () from /usr/lib64/pulseaudio/libpulsecommon-16.1.so
#7  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#8  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 16 (Thread 0x7f270b4006c0 (LWP 5362)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a57f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60ffb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271e5d4d8e in QtWaylandClient::EventThread::run() () from /lib64/libQt6WaylandClient.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 15 (Thread 0x7f26e94006c0 (LWP 5321)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a57f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f27018a893d in cnd_wait () from /usr/lib64/dri/iris_dri.so
#3  0x00007f270188570b in util_queue_thread_func () from /usr/lib64/dri/iris_dri.so
#4  0x00007f27018a886c in impl_thrd_routine () from /usr/lib64/dri/iris_dri.so
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 14 (Thread 0x7f26c7e006c0 (LWP 6520)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 13 (Thread 0x7f26dea006c0 (LWP 5069)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 12 (Thread 0x7f26dcc006c0 (LWP 5076)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 11 (Thread 0x7f270aa006c0 (LWP 5363)):
#0  0x00007f271f71c87d in poll () from /lib64/libc.so.6
#1  0x00007f271e5d4df5 in QtWaylandClient::EventThread::run() () from /lib64/libQt6WaylandClient.so.6
#2  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#3  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#4  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 10 (Thread 0x7f26de0006c0 (LWP 5074)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 9 (Thread 0x7f26dd6006c0 (LWP 5075)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 8 (Thread 0x7f2700c006c0 (LWP 5051)):
#0  0x00007f271f71c87d in poll () from /lib64/libc.so.6
#1  0x00007f271f165c34 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f271f105383 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f271f1053e1 in glib_worker_main () from /lib64/libglib-2.0.so.0
#4  0x00007f271f134813 in g_thread_proxy () from /lib64/libglib-2.0.so.0
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 7 (Thread 0x7f26f0c006c0 (LWP 5052)):
#0  0x00007f271f71c87d in poll () from /lib64/libc.so.6
#1  0x00007f271f165c34 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f271f109f37 in g_main_loop_run () from /lib64/libglib-2.0.so.0
#3  0x00007f271a57c682 in gdbus_shared_thread_func.lto_priv () from /lib64/libgio-2.0.so.0
#4  0x00007f271f134813 in g_thread_proxy () from /lib64/libglib-2.0.so.0
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 6 (Thread 0x7f270c2006c0 (LWP 5034)):
#0  0x00007f271f71c87d in poll () from /lib64/libc.so.6
#1  0x00007f271f165c34 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f271f105383 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f27200851a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#4  0x00007f271fda3bc3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#5  0x00007f271feb7f4f in QThread::exec() () from /lib64/libQt6Core.so.6
#6  0x00007f272036fe41 in QDBusConnectionManager::run() () from /lib64/libQt6DBus.so.6
#7  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#8  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#9  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 5 (Thread 0x7f26e8a006c0 (LWP 5066)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 4 (Thread 0x7f26dfe006c0 (LWP 5067)):
#0  0x00007f271f6a2da9 in __futex_abstimed_wait_common () from /lib64/libc.so.6
#1  0x00007f271f6a5b62 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libc.so.6
#2  0x00007f271ff60f7d in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /lib64/libQt6Core.so.6
#3  0x00007f271ff5dd45 in QThreadPoolThread::run() () from /lib64/libQt6Core.so.6
#4  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 3 (Thread 0x7f27016006c0 (LWP 5050)):
#0  0x00007f271f7283dd in syscall () from /lib64/libc.so.6
#1  0x00007f271f162ccd in g_cond_wait () from /lib64/libglib-2.0.so.0
#2  0x00007f271f0ce61b in g_async_queue_pop_intern_unlocked () from /lib64/libglib-2.0.so.0
#3  0x00007f271f135a03 in g_thread_pool_spawn_thread () from /lib64/libglib-2.0.so.0
#4  0x00007f271f134813 in g_thread_proxy () from /lib64/libglib-2.0.so.0
#5  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#6  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 2 (Thread 0x7f2708a006c0 (LWP 5047)):
#0  0x00007f271f71c87d in poll () from /lib64/libc.so.6
#1  0x00007f271f165c34 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f271f105383 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f27200851a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#4  0x00007f271fda3bc3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#5  0x00007f271feb7f4f in QThread::exec() () from /lib64/libQt6Core.so.6
#6  0x00007f271ff5473c in QThreadPrivate::start(void*) () from /lib64/libQt6Core.so.6
#7  0x00007f271f6a66d7 in start_thread () from /lib64/libc.so.6
#8  0x00007f271f72a60c in clone3 () from /lib64/libc.so.6

Thread 1 (Thread 0x7f271a05eb00 (LWP 5033)):
[KCrash Handler]
#4  0x00007f271f6a8664 in __pthread_kill_implementation () from /lib64/libc.so.6
#5  0x00007f271f64fc4e in raise () from /lib64/libc.so.6
#6  0x00007f271f637902 in abort () from /lib64/libc.so.6
#7  0x00007f271fccb631 in qAbort() () from /lib64/libQt6Core.so.6
#8  0x00007f271fd19e27 in qt_message(QtMsgType, QMessageLogContext const&, char const*, __va_list_tag*) () from /lib64/libQt6Core.so.6
#9  0x00007f271fccc4d3 in QMessageLogger::fatal(char const*, ...) const () from /lib64/libQt6Core.so.6
#10 0x00007f2720ed36e7 in QQmlData::destroyed(QObject*) [clone .cold] () from /lib64/libQt6Qml.so.6
#11 0x00007f271fdf8db9 in QObject::~QObject() () from /lib64/libQt6Core.so.6
#12 0x00007f270b77fd21 in QQmlPrivate::QQmlElement<QQuickDialogButtonBox>::~QQmlElement() () from /lib64/libQt6QuickTemplates2.so.6
#13 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#14 0x00007f271fdf9554 in QObject::~QObject() () from /lib64/libQt6Core.so.6
#15 0x00007f270b77fdb1 in QQmlPrivate::QQmlElement<QQuickDialog>::~QQmlElement() () from /lib64/libQt6QuickTemplates2.so.6
#16 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#17 0x00007f271fdf9554 in QObject::~QObject() () from /lib64/libQt6Core.so.6
#18 0x00007f2721a640d1 in QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement() () from /lib64/libQt6Quick.so.6
#19 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#20 0x00007f271fdf9554 in QObject::~QObject() () from /lib64/libQt6Core.so.6
#21 0x00007f2721a63e91 in QQmlPrivate::QQmlElement<QQuickMouseArea>::~QQmlElement() () from /lib64/libQt6Quick.so.6
#22 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#23 0x00007f271fdf9554 in QObject::~QObject() () from /lib64/libQt6Core.so.6
#24 0x00007f270b77fae1 in QQmlPrivate::QQmlElement<QQuickPage>::~QQmlElement() () from /lib64/libQt6QuickTemplates2.so.6
#25 0x00007f27228ca4fb in KQuickConfigModule::~KQuickConfigModule() () from /lib64/libKF6KCMUtilsQuick.so.6
#26 0x00007f2701647053 in KCMKScreen::~KCMKScreen() () from /usr/lib64/qt6/plugins/plasma/kcms/systemsettings/kcm_kscreen.so
#27 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#28 0x00007f2721fe7cf8 in QWidget::~QWidget() () from /lib64/libQt6Widgets.so.6
#29 0x00007f272219b4c5 in QScrollArea::~QScrollArea() () from /lib64/libQt6Widgets.so.6
#30 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#31 0x00007f2721fe7cf8 in QWidget::~QWidget() () from /lib64/libQt6Widgets.so.6
#32 0x00007f272270ec09 in KPageStackedWidget::~KPageStackedWidget() [clone .lto_priv.0] () from /lib64/libKF6WidgetsAddons.so.6
#33 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#34 0x00007f2721fe7cf8 in QWidget::~QWidget() () from /lib64/libQt6Widgets.so.6
#35 0x00007f2722710af5 in KPageWidget::~KPageWidget() () from /lib64/libKF6WidgetsAddons.so.6
#36 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#37 0x00007f2721fe7cf8 in QWidget::~QWidget() () from /lib64/libQt6Widgets.so.6
#38 0x00005566046394c5 in ModuleView::~ModuleView() ()
#39 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#40 0x00007f2721fe7cf8 in QWidget::~QWidget() () from /lib64/libQt6Widgets.so.6
#41 0x0000556604632039 in FocusHackWidget::~FocusHackWidget() ()
#42 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#43 0x00007f2721fe7cf8 in QWidget::~QWidget() () from /lib64/libQt6Widgets.so.6
#44 0x00007f27221b4ae5 in QStackedWidget::~QStackedWidget() () from /lib64/libQt6Widgets.so.6
#45 0x00007f271fdf415d in QObjectPrivate::deleteChildren() () from /lib64/libQt6Core.so.6
#46 0x00007f2721fe7cf8 in QWidget::~QWidget() () from /lib64/libQt6Widgets.so.6
#47 0x0000556604631795 in SettingsBase::~SettingsBase() ()
#48 0x00007f271fdedbd9 in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#49 0x00007f2721f8b218 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#50 0x00007f271fd96e88 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#51 0x00007f271fd9ac51 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt6Core.so.6
#52 0x00007f27200859ef in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt6Core.so.6
#53 0x00007f271f103e8c in g_main_context_dispatch_unlocked.lto_priv () from /lib64/libglib-2.0.so.0
#54 0x00007f271f165c98 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#55 0x00007f271f105383 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#56 0x00007f27200851a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#57 0x00007f271fda3bc3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#58 0x00007f26ea8b80d2 in KScreen::WaylandBackend::setConfig(QSharedPointer<KScreen::Config> const&) () from /usr/lib64/qt6/plugins/kf6/kscreen/KSC_KWayland.so
#59 0x00007f2700c4749a in KScreen::SetConfigOperation::start() () from /lib64/libKF6Screen.so.8
#60 0x00007f271fdeddcb in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#61 0x00007f2721f8b218 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#62 0x00007f271fd96e88 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#63 0x00007f271fd9ac51 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt6Core.so.6
#64 0x00007f27200859ef in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt6Core.so.6
#65 0x00007f271f103e8c in g_main_context_dispatch_unlocked.lto_priv () from /lib64/libglib-2.0.so.0
#66 0x00007f271f165c98 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#67 0x00007f271f105383 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#68 0x00007f27200851a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#69 0x00007f271fda3bc3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#70 0x00007f2700c4577f in KScreen::ConfigOperation::exec() () from /lib64/libKF6Screen.so.8
#71 0x00007f2701649a24 in KCMKScreen::doSave() () from /usr/lib64/qt6/plugins/plasma/kcms/systemsettings/kcm_kscreen.so
#72 0x00007f2722fee17e in KCModuleQml::save() () from /lib64/libKF6KCMUtils.so.6
#73 0x000055660464560a in ModuleView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) ()
#74 0x00007f271fdfcc60 in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6
#75 0x00007f27220c3194 in QAbstractButton::clicked(bool) () from /lib64/libQt6Widgets.so.6
#76 0x00007f27220c341f in QAbstractButtonPrivate::emitClicked() () from /lib64/libQt6Widgets.so.6
#77 0x00007f27220c4aff in QAbstractButtonPrivate::click() () from /lib64/libQt6Widgets.so.6
#78 0x00007f27220c4d15 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /lib64/libQt6Widgets.so.6
#79 0x00007f2721fed278 in QWidget::event(QEvent*) () from /lib64/libQt6Widgets.so.6
#80 0x00007f2721f8b218 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#81 0x00007f2721f96142 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#82 0x00007f271fd96e88 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#83 0x00007f2721f946cc in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /lib64/libQt6Widgets.so.6
#84 0x00007f2722001336 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () from /lib64/libQt6Widgets.so.6
#85 0x00007f2722004240 in QWidgetWindow::event(QEvent*) () from /lib64/libQt6Widgets.so.6
#86 0x00007f2721f8b218 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#87 0x00007f271fd96e88 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#88 0x00007f27205e6d9b in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib64/libQt6Gui.so.6
#89 0x00007f272064b37c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Gui.so.6
#90 0x00007f2720b634f4 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt6Gui.so.6
#91 0x00007f271f103e8c in g_main_context_dispatch_unlocked.lto_priv () from /lib64/libglib-2.0.so.0
#92 0x00007f271f165c98 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#93 0x00007f271f105383 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#94 0x00007f27200851a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#95 0x00007f271fda3bc3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#96 0x00007f26ea8b80d2 in KScreen::WaylandBackend::setConfig(QSharedPointer<KScreen::Config> const&) () from /usr/lib64/qt6/plugins/kf6/kscreen/KSC_KWayland.so
#97 0x00007f2700c4749a in KScreen::SetConfigOperation::start() () from /lib64/libKF6Screen.so.8
#98 0x00007f271fdeddcb in QObject::event(QEvent*) () from /lib64/libQt6Core.so.6
#99 0x00007f2721f8b218 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#100 0x00007f271fd96e88 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#101 0x00007f271fd9ac51 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt6Core.so.6
#102 0x00007f27200859ef in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt6Core.so.6
#103 0x00007f271f103e8c in g_main_context_dispatch_unlocked.lto_priv () from /lib64/libglib-2.0.so.0
#104 0x00007f271f165c98 in g_main_context_iterate_unlocked.isra () from /lib64/libglib-2.0.so.0
#105 0x00007f271f105383 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#106 0x00007f27200851a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#107 0x00007f271fda3bc3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6
#108 0x00007f2700c4577f in KScreen::ConfigOperation::exec() () from /lib64/libKF6Screen.so.8
#109 0x00007f2701649a24 in KCMKScreen::doSave() () from /usr/lib64/qt6/plugins/plasma/kcms/systemsettings/kcm_kscreen.so
#110 0x00007f2722fee17e in KCModuleQml::save() () from /lib64/libKF6KCMUtils.so.6
#111 0x000055660464560a in ModuleView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) ()
#112 0x00007f271fdfcc60 in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt6Core.so.6
#113 0x00007f27220c3194 in QAbstractButton::clicked(bool) () from /lib64/libQt6Widgets.so.6
#114 0x00007f27220c341f in QAbstractButtonPrivate::emitClicked() () from /lib64/libQt6Widgets.so.6
#115 0x00007f27220c4aff in QAbstractButtonPrivate::click() () from /lib64/libQt6Widgets.so.6
#116 0x00007f27220c4d15 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /lib64/libQt6Widgets.so.6
#117 0x00007f2721fed278 in QWidget::event(QEvent*) () from /lib64/libQt6Widgets.so.6
#118 0x00007f2721f8b218 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#119 0x00007f2721f96142 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#120 0x00007f271fd96e88 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#121 0x00007f2721f946cc in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /lib64/libQt6Widgets.so.6
#122 0x00007f2722001336 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () from /lib64/libQt6Widgets.so.6
#123 0x00007f2722004240 in QWidgetWindow::event(QEvent*) () from /lib64/libQt6Widgets.so.6
#124 0x00007f2721f8b218 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt6Widgets.so.6
#125 0x00007f271fd96e88 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt6Core.so.6
#126 0x00007f27205e6d9b in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib64/libQt6Gui.so.6
#127 0x00007f272064b37c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Gui.so.6

Reported using DrKonqi

Comment 1 boogs.secret928 2024-09-13 21:56:45 UTC

Likely doesn't matter, but I had enabled the included dark theme as soon as I booted.  Again, shouldn't matter, but I also had enabled spell-checking.  Just trying to be accurate, since I reported everything was defaults, but I had made those 2 little changes.

Comment 2 Nate Graham 2024-09-16 23:27:45 UTC

Seems similar to Bug 477020 and Bug 490937.

Comment 3 Nicolas Fella 2024-09-17 14:48:16 UTC

It's a different issue. 

The problem is that in the display config's save() function we are using a nested event loop, which is something we must not do in KCMs

Comment 4 Nate Graham 2024-09-17 14:52:56 UTC

Got it.

Comment 5 David Edmundson 2025-05-26 12:38:00 UTC

>#57 0x00007f271fda3bc3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt6Core.so.6

*** This bug has been marked as a duplicate of bug 483072 ***