Bug 454834

Application: systemsettings5 (5.18.7)

Qt Version: 5.12.8
Frameworks Version: 5.68.0
Operating System: Linux 5.4.0-109-generic x86_64
Windowing system: X11
Distribution: Ubuntu 20.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Nothing specific, it crashes on startup. I may have UI scaling set to something other than 100%, but it's hard to tell without looking at the settings ;)

When starting from the terminal I get the following output:

:~$ systemsettings5
failed to acquire GL context to resolve capabilities, using defaults..
QQmlEngine::setContextForObject(): Object already has a QQmlContext
Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile) 
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = systemsettings5 path = /usr/bin pid = 146981
KCrash: Arguments: /usr/bin/systemsettings5 
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0

[1]+  Stopped                 systemsettings5



Is there any other helpful information I can provide? If so, let me know.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f76b55ef800 (LWP 140476))]

Thread 5 (Thread 0x7f76a8e59700 (LWP 140481)):
#0  0x00007f76b950299f in __GI___poll (fds=0x7f76980029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f76b77db18e in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f76980029e0, timeout=<optimized out>, context=0x7f7698000c30) at ../../../glib/gmain.c:4346
#2  g_main_context_iterate (context=context@entry=0x7f7698000c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f76b77db2c3 in g_main_context_iteration (context=0x7f7698000c30, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f76b9aa2583 in QEventDispatcherGlib::processEvents (this=0x7f7698000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f76b9a494db in QEventLoop::exec (this=this@entry=0x7f76a8e58d80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f76b9881785 in QThread::exec (this=this@entry=0x559c9d087080) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f76b8b331a9 in QQmlThreadPrivate::run (this=0x559c9d087080) at qml/ftw/qqmlthread.cpp:148
#8  0x00007f76b98829d2 in QThreadPrivate::start (arg=0x559c9d087080) at thread/qthread_unix.cpp:361
#9  0x00007f76b80be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f76b950f133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f76b1032700 (LWP 140480)):
#0  g_main_context_iterate (context=context@entry=0x7f76a0000c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4039
#1  0x00007f76b77db2c3 in g_main_context_iteration (context=0x7f76a0000c30, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#2  0x00007f76b9aa2583 in QEventDispatcherGlib::processEvents (this=0x7f76a0000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#3  0x00007f76b9a494db in QEventLoop::exec (this=this@entry=0x7f76b1031d80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#4  0x00007f76b9881785 in QThread::exec (this=this@entry=0x559c9cda6ee0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#5  0x00007f76b8b331a9 in QQmlThreadPrivate::run (this=0x559c9cda6ee0) at qml/ftw/qqmlthread.cpp:148
#6  0x00007f76b98829d2 in QThreadPrivate::start (arg=0x559c9cda6ee0) at thread/qthread_unix.cpp:361
#7  0x00007f76b80be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f76b950f133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f76b376e700 (LWP 140478)):
#0  g_mutex_unlock (mutex=0x7f76a4000c30) at ../../../glib/gthread-posix.c:1493
#1  0x00007f76b77db183 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f76a40029e0, timeout=<optimized out>, context=0x7f76a4000c30) at ../../../glib/gmain.c:4345
#2  g_main_context_iterate (context=context@entry=0x7f76a4000c30, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
#3  0x00007f76b77db2c3 in g_main_context_iteration (context=0x7f76a4000c30, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#4  0x00007f76b9aa2583 in QEventDispatcherGlib::processEvents (this=0x7f76a4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f76b9a494db in QEventLoop::exec (this=this@entry=0x7f76b376dd70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007f76b9881785 in QThread::exec (this=this@entry=0x7f76b9da7d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007f76b9d24efa in QDBusConnectionManager::run (this=0x7f76b9da7d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007f76b98829d2 in QThreadPrivate::start (arg=0x7f76b9da7d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#9  0x00007f76b80be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f76b950f133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f76b46e9700 (LWP 140477)):
#0  0x00007f76b950299f in __GI___poll (fds=0x7f76b46e8ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f76b807cc1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f76b807e90a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f76b4ee8298 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f76b98829d2 in QThreadPrivate::start (arg=0x559c9c9b68c0) at thread/qthread_unix.cpp:361
#5  0x00007f76b80be609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f76b950f133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f76b55ef800 (LWP 140476)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7  0x00007f76b9412859 in __GI_abort () at abort.c:79
#8  0x00007f76b9849aad in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1907
#9  QMessageLogger::fatal (this=<optimized out>, msg=<optimized out>) at global/qlogging.cpp:888
#10 0x00007f76b91e2b16 in ?? () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#11 0x00007f76b91e2e72 in ?? () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#12 0x00007f76b91e5036 in QQuickWidget::resizeEvent(QResizeEvent*) () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#13 0x00007f76ba543947 in QWidget::event (this=0x559c9cda9100, event=0x7ffd47fc8210) at kernel/qwidget.cpp:9122
#14 0x00007f76b91e5ce3 in QQuickWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#15 0x00007f76ba500a66 in QApplicationPrivate::notify_helper (this=this@entry=0x559c9c9a2e80, receiver=receiver@entry=0x559c9cda9100, e=e@entry=0x7ffd47fc8210) at kernel/qapplication.cpp:3700
#16 0x00007f76ba50a0f0 in QApplication::notify (this=0x7ffd47fc8e90, receiver=0x559c9cda9100, e=0x7ffd47fc8210) at kernel/qapplication.cpp:3446
#17 0x00007f76b9a4a93a in QCoreApplication::notifyInternal2 (receiver=0x559c9cda9100, event=0x7ffd47fc8210) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:142
#18 0x00007f76ba53be6e in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=this@entry=0x559c9cba8ab0, recursive=recursive@entry=false, disableUpdates=<optimized out>, disableUpdates@entry=false) at kernel/qwidget.cpp:7969
#19 0x00007f76ba53fbd7 in QWidgetPrivate::show_helper (this=this@entry=0x559c9cba8ab0) at kernel/qwidget.cpp:8020
#20 0x00007f76ba542d6b in QWidgetPrivate::setVisible (this=0x559c9cba8ab0, visible=<optimized out>) at kernel/qwidget.cpp:8383
#21 0x00007f76ba53fb61 in QWidgetPrivate::showChildren (this=this@entry=0x559c9cd90f30, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8463
#22 0x00007f76ba53fbf3 in QWidgetPrivate::show_helper (this=0x559c9cd90f30) at kernel/qwidget.cpp:8026
#23 0x00007f76ba53f9f5 in QWidgetPrivate::show_recursive (this=<optimized out>) at kernel/qwidget.cpp:7950
#24 0x00007f76ba53fb79 in QWidgetPrivate::showChildren (this=this@entry=0x559c9ca95690, spontaneous=spontaneous@entry=false) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:131
#25 0x00007f76ba53fbf3 in QWidgetPrivate::show_helper (this=this@entry=0x559c9ca95690) at kernel/qwidget.cpp:8026
#26 0x00007f76ba542d6b in QWidgetPrivate::setVisible (this=0x559c9ca95690, visible=<optimized out>) at kernel/qwidget.cpp:8383
#27 0x00007f76ba53fb61 in QWidgetPrivate::showChildren (this=this@entry=0x559c9ca1d600, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8463
#28 0x00007f76ba53fbf3 in QWidgetPrivate::show_helper (this=this@entry=0x559c9ca1d600) at kernel/qwidget.cpp:8026
#29 0x00007f76ba542d6b in QWidgetPrivate::setVisible (this=0x559c9ca1d600, visible=<optimized out>) at kernel/qwidget.cpp:8383
#30 0x0000559c9c2e884b in ?? ()
#31 0x0000559c9c2eb444 in ?? ()
#32 0x00007f76b9a835b6 in QtPrivate::QSlotObjectBase::call (a=0x7ffd47fc8850, r=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#33 QSingleShotTimer::timerEvent (this=0x559c9cb419f0) at kernel/qtimer.cpp:318
#34 0x00007f76b9a76cf5 in QObject::event (this=0x559c9cb419f0, e=<optimized out>) at kernel/qobject.cpp:1283
#35 0x00007f76ba500a66 in QApplicationPrivate::notify_helper (this=this@entry=0x559c9c9a2e80, receiver=receiver@entry=0x559c9cb419f0, e=e@entry=0x7ffd47fc8b70) at kernel/qapplication.cpp:3700
#36 0x00007f76ba50a0f0 in QApplication::notify (this=0x7ffd47fc8e90, receiver=0x559c9cb419f0, e=0x7ffd47fc8b70) at kernel/qapplication.cpp:3446
#37 0x00007f76b9a4a93a in QCoreApplication::notifyInternal2 (receiver=0x559c9cb419f0, event=0x7ffd47fc8b70) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:142
#38 0x00007f76b9aa18b0 in QTimerInfoList::activateTimers (this=0x559c9ca1b700) at kernel/qtimerinfo_unix.cpp:643
#39 0x00007f76b9aa219c in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:182
#40 0x00007f76b77daf9d in g_main_dispatch (context=0x7f76ac005010) at ../../../glib/gmain.c:3309
#41 g_main_context_dispatch (context=context@entry=0x7f76ac005010) at ../../../glib/gmain.c:3974
#42 0x00007f76b77db220 in g_main_context_iterate (context=context@entry=0x7f76ac005010, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4047
#43 0x00007f76b77db2c3 in g_main_context_iteration (context=0x7f76ac005010, may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
#44 0x00007f76b9aa2565 in QEventDispatcherGlib::processEvents (this=0x559c9ca1bfc0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#45 0x00007f76b9a494db in QEventLoop::exec (this=this@entry=0x7ffd47fc8db0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#46 0x00007f76b9a51246 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#47 0x0000559c9c2e5856 in ?? ()
#48 0x00007f76b9414083 in __libc_start_main (main=0x559c9c2e5460, argc=1, argv=0x7ffd47fc8fe8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd47fc8fd8) at ../csu/libc-start.c:308
#49 0x0000559c9c2e58de in _start ()
[Inferior 1 (process 140476) detached]

Possible duplicates by query: bug 454829, bug 454705, bug 454389, bug 454322, bug 453861.

Reported using DrKonqi