Application: systemsettings5 (5.16.90)

Qt Version: 5.12.4
Frameworks Version: 5.62.0
Operating System: Linux 5.2.17-200.fc30.x86_64 x86_64
Distribution: "Fedora release 30 (Thirty)"

-- Information about the crash:
- What I was doing when the application crashed:

it crashed randomly: I don't have any other info to add. I think it can be happened after a screen lock / unlock

-- Backtrace:
Application: Impostazioni di sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
[Current thread is 1 (Thread 0x7fc306c24800 (LWP 3231))]

Thread 5 (Thread 0x7fc2e7fff700 (LWP 3237)):
#0  __GI___poll (fds=0x7fc2e0004a30, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:27
#1  0x00007fc3090791ce in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fc2e0004a30, timeout=<optimized out>, context=0x7fc2e0000bf0) at ../glib/gmain.c:4228
#2  g_main_context_iterate (context=context@entry=0x7fc2e0000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007fc309079303 in g_main_context_iteration (context=0x7fc2e0000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007fc30b3acbf3 in QEventDispatcherGlib::processEvents (this=0x7fc2e0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fc30b3569eb in QEventLoop::exec (this=this@entry=0x7fc2e7ffed80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fc30b1af635 in QThread::exec (this=this@entry=0x5622bc0d6330) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fc30a494a69 in QQmlThreadPrivate::run (this=0x5622bc0d6330) at qml/ftw/qqmlthread.cpp:148
#8  0x00007fc30b1b0786 in QThreadPrivate::start (arg=0x5622bc0d6330) at thread/qthread_unix.cpp:361
#9  0x00007fc3099c24c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fc30ae2f553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fc2f240c700 (LWP 3235)):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x5622bbb291c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x5622bbb29178, cond=0x5622bbb291a0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x5622bbb291a0, mutex=0x5622bbb29178) at pthread_cond_wait.c:655
#3  0x00007fc2f272e6fb in cnd_wait (mtx=0x5622bbb29178, cond=0x5622bbb291a0) at ../include/c11/threads_posix.h:155
#4  util_queue_thread_func (input=input@entry=0x5622bbc5ab70) at ../src/util/u_queue.c:272
#5  0x00007fc2f272e30b in impl_thrd_routine (p=<optimized out>) at ../include/c11/threads_posix.h:87
#6  0x00007fc3099c24c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fc30ae2f553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fc2f8932700 (LWP 3234)):
#0  0x00007fc30ae24ae7 in __GI___poll (fds=0x7fc2ec012820, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc3090791ce in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7fc2ec012820, timeout=<optimized out>, context=0x7fc2ec000bf0) at ../glib/gmain.c:4228
#2  g_main_context_iterate (context=context@entry=0x7fc2ec000bf0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3922
#3  0x00007fc309079303 in g_main_context_iteration (context=0x7fc2ec000bf0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#4  0x00007fc30b3acbf3 in QEventDispatcherGlib::processEvents (this=0x7fc2ec000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fc30b3569eb in QEventLoop::exec (this=this@entry=0x7fc2f8931d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fc30b1af635 in QThread::exec (this=this@entry=0x7fc30b6ac060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fc30b628f4a in QDBusConnectionManager::run (this=0x7fc30b6ac060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007fc30b1b0786 in QThreadPrivate::start (arg=0x7fc30b6ac060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:361
#9  0x00007fc3099c24c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fc30ae2f553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc2f9932700 (LWP 3233)):
#0  0x00007fc30ae24ae7 in __GI___poll (fds=fds@entry=0x7fc2f9931ca8, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc30998238a in poll (__timeout=-1, __nfds=1, __fds=0x7fc2f9931ca8) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x5622bb982550, cond=cond@entry=0x5622bb982590, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:479
#3  0x00007fc309983ffa in xcb_wait_for_event (c=c@entry=0x5622bb982550) at xcb_in.c:697
#4  0x00007fc2f9b29be8 in QXcbEventQueue::run (this=0x5622bb994200) at qxcbeventqueue.cpp:228
#5  0x00007fc30b1b0786 in QThreadPrivate::start (arg=0x5622bb994200) at thread/qthread_unix.cpp:361
#6  0x00007fc3099c24c0 in start_thread (arg=<optimized out>) at pthread_create.c:479
#7  0x00007fc30ae2f553 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc306c24800 (LWP 3231)):
[KCrash Handler]
#7  0x00007fc30a85fe15 in qGetPtrHelper<QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > > (ptr=...) at /usr/include/qt5/QtCore/qglobal.h:1038
#8  QQuickWindow::d_func (this=0xb1) at items/qquickwindow.h:78
#9  QQuickWindow::mouseGrabberItem (this=0xb1) at items/qquickwindow.cpp:1555
#10 0x00007fc30a86212e in QQuickWindowPrivate::removeGrabber (this=0x5622bc15f3d0, grabber=0x5622c0c9e7c0, mouse=<optimized out>, touch=true) at items/qquickwindow.cpp:848
#11 0x00007fc30a8475d8 in QQuickItemPrivate::setEffectiveEnableRecur (this=0x5622c0c9e880, scope=0x5622bc10c560, newEffectiveEnable=<optimized out>) at items/qquickitem.cpp:6058
#12 0x00007fc30a84763a in QQuickItemPrivate::setEffectiveEnableRecur (this=0x5622bc361c90, scope=0x5622bc10c560, newEffectiveEnable=<optimized out>) at items/qquickitem.h:466
#13 0x00007fc30a8477a9 in QQuickItem::setEnabled (this=<optimized out>, e=<optimized out>) at items/qquickitem.cpp:5980
#14 0x00007fc30a85157e in QQuickItem::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7ffe94ae2740) at .moc/moc_qquickitem.cpp:963
#15 0x00007fc30a46842f in QQmlPropertyData::writeProperty (flags=..., value=0x7ffe94ae270f, target=<optimized out>, this=<optimized out>) at ../../include/QtQml/5.12.4/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:346
#16 GenericBinding<1>::doStore<bool> (flags=..., pd=<optimized out>, value=<optimized out>, this=<optimized out>) at qml/qqmlbinding.cpp:332
#17 GenericBinding<1>::write (this=0x5622bc371500, result=..., isUndefined=<optimized out>, flags=...) at qml/qqmlbinding.cpp:296
#18 0x00007fc30a468e10 in QQmlNonbindingBinding::doUpdate (this=0x5622bc371500, watcher=..., flags=..., scope=...) at ../../include/QtQml/5.12.4/QtQml/private/../../../../../src/qml/jsruntime/qv4scopedvalue_p.h:239
#19 0x00007fc30a465564 in QQmlBinding::update (this=0x5622bc371500, flags=...) at qml/qqmlbinding.cpp:185
#20 0x00007fc30a441794 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#21 0x00007fc30a3ddc25 in QQmlData::signalEmitted (object=0x5622bc0dd370, index=15, a=0x0) at qml/qqmlengine.cpp:883
#22 0x00007fc30b381783 in QMetaObject::activate (sender=0x5622bc0dd370, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.h:121
#23 0x00007fc2f0490f94 in QtPrivate::QFunctorSlotObject<KCMKScreen::load()::{lambda(bool)#1}, 1, QtPrivate::List<bool>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) () from /usr/lib64/qt5/plugins/kcms/kcm_kscreen.so
#24 0x00007fc30b381ec0 in QtPrivate::QSlotObjectBase::call (a=0x7ffe94ae4420, r=0x5622bc0dd370, this=0x5622bbc639e0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#25 QMetaObject::activate (sender=0x5622bbea3690, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3781
#26 0x00007fc2f048b196 in ConfigHandler::outputConnect(bool) () from /usr/lib64/qt5/plugins/kcms/kcm_kscreen.so
#27 0x00007fc30b381ec0 in QtPrivate::QSlotObjectBase::call (a=0x7ffe94ae44e0, r=0x5622bbea3690, this=0x5622bf64d070) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#28 QMetaObject::activate (sender=0x5622c0c67190, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3781
#29 0x00007fc2f0435bae in KScreen::Output::apply(QSharedPointer<KScreen::Output> const&) () from /lib64/libKF5Screen.so.7
#30 0x00007fc2f040a8b5 in KScreen::Config::apply(QSharedPointer<KScreen::Config> const&) () from /lib64/libKF5Screen.so.7
#31 0x00007fc2f041cd85 in KScreen::ConfigMonitor::Private::updateConfigs(QSharedPointer<KScreen::Config> const&) () from /lib64/libKF5Screen.so.7
#32 0x00007fc2f041f76d in KScreen::ConfigMonitor::Private::edidReady(QDBusPendingCallWatcher*) () from /lib64/libKF5Screen.so.7
#33 0x00007fc30b381ec0 in QtPrivate::QSlotObjectBase::call (a=0x7ffe94ae4890, r=0x5622c0ca4870, this=0x5622bf65a6c0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#34 QMetaObject::activate (sender=0x5622c0c61990, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3781
#35 0x00007fc30b68c883 in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:157
#36 0x00007fc30b68c988 in QDBusPendingCallWatcherPrivate::_q_finished (this=<optimized out>) at qdbuspendingcall.cpp:494
#37 QDBusPendingCallWatcher::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:85
#38 0x00007fc30b382bfa in QObject::event (this=0x5622c0c61990, e=<optimized out>) at kernel/qobject.cpp:1260
#39 0x00007fc30bd56af6 in QApplicationPrivate::notify_helper (this=this@entry=0x5622bb96eb50, receiver=receiver@entry=0x5622c0c61990, e=e@entry=0x5622bc578bc0) at kernel/qapplication.cpp:3737
#40 0x00007fc30bd5fe80 in QApplication::notify (this=0x7ffe94ae4f30, receiver=0x5622c0c61990, e=0x5622bc578bc0) at kernel/qapplication.cpp:3483
#41 0x00007fc30b357ae8 in QCoreApplication::notifyInternal2 (receiver=0x5622c0c61990, event=0x5622bc578bc0) at kernel/qcoreapplication.cpp:1084
#42 0x00007fc30b35aa93 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5622bb966000) at kernel/qcoreapplication.cpp:1821
#43 0x00007fc30b3ace47 in postEventSourceDispatch (s=s@entry=0x5622bba9bff0) at kernel/qeventdispatcher_glib.cpp:276
#44 0x00007fc309078ecd in g_main_dispatch (context=0x7fc2f4004fd0) at ../glib/gmain.c:3189
#45 g_main_context_dispatch (context=context@entry=0x7fc2f4004fd0) at ../glib/gmain.c:3854
#46 0x00007fc309079260 in g_main_context_iterate (context=context@entry=0x7fc2f4004fd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:3927
#47 0x00007fc309079303 in g_main_context_iteration (context=0x7fc2f4004fd0, may_block=may_block@entry=1) at ../glib/gmain.c:3988
#48 0x00007fc30b3acbd5 in QEventDispatcherGlib::processEvents (this=0x5622bba9dbe0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#49 0x00007fc30b3569eb in QEventLoop::exec (this=this@entry=0x7ffe94ae4e50, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#50 0x00007fc30b35e726 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#51 0x00005622ba33a86e in main ()
[Inferior 1 (process 3231) detached]

Possible duplicates by query: bug 397807, bug 397772, bug 397547, bug 397367.

Reported using DrKonqi