Bug 413775

Application: systemsettings5 (5.17.2)

Qt Version: 5.13.1
Frameworks Version: 5.63.0
Operating System: Linux 5.0.0-32-generic x86_64
Distribution: KDE neon User Edition 5.17

-- Information about the crash:
- What I was doing when the application crashed:
I was trying do open the "compositor" option in "display". 

- Unusual behavior I noticed:
It works if a search for " compositor" in the config sidebar. 
- Custom settings of the application:

The crash can be reproduced sometimes.

-- Backtrace:
Application: Configurações do Sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f53de6ca800 (LWP 30447))]

Thread 7 (Thread 0x7f53a51bc700 (LWP 30457)):
#0  0x00007f53d30b8649 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f53d30724d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f53d30726dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f53da5519db in QEventDispatcherGlib::processEvents (this=0x7f5398000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f53da4f1eaa in QEventLoop::exec (this=this@entry=0x7f53a51bbd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f53da30d3ca in QThread::exec (this=this@entry=0x562acca73360) at thread/qthread.cpp:531
#6  0x00007f53d80b0cb5 in QQmlThreadPrivate::run (this=0x562acca73360) at qml/ftw/qqmlthread.cpp:152
#7  0x00007f53da30eb72 in QThreadPrivate::start (arg=0x562acca73360) at thread/qthread_unix.cpp:360
#8  0x00007f53d54316db in start_thread (arg=0x7f53a51bc700) at pthread_create.c:463
#9  0x00007f53d9c0b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f53a8200700 (LWP 30455)):
#0  0x00007f53d30b8664 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f53d30714b7 in g_main_context_acquire () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f53d3072485 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f53d30726dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f53da5519db in QEventDispatcherGlib::processEvents (this=0x7f53a0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f53da4f1eaa in QEventLoop::exec (this=this@entry=0x7f53a81ffd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f53da30d3ca in QThread::exec (this=this@entry=0x562accbfb190) at thread/qthread.cpp:531
#7  0x00007f53d80b0cb5 in QQmlThreadPrivate::run (this=0x562accbfb190) at qml/ftw/qqmlthread.cpp:152
#8  0x00007f53da30eb72 in QThreadPrivate::start (arg=0x562accbfb190) at thread/qthread_unix.cpp:360
#9  0x00007f53d54316db in start_thread (arg=0x7f53a8200700) at pthread_create.c:463
#10 0x00007f53d9c0b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f53b0cb8700 (LWP 30453)):
#0  0x00007f53d3071db3 in g_main_context_query () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f53d3072547 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f53d30726dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f53da5519db in QEventDispatcherGlib::processEvents (this=0x7f53ac000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f53da4f1eaa in QEventLoop::exec (this=this@entry=0x7f53b0cb7d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f53da30d3ca in QThread::exec (this=this@entry=0x562acc8df2a0) at thread/qthread.cpp:531
#6  0x00007f53d80b0cb5 in QQmlThreadPrivate::run (this=0x562acc8df2a0) at qml/ftw/qqmlthread.cpp:152
#7  0x00007f53da30eb72 in QThreadPrivate::start (arg=0x562acc8df2a0) at thread/qthread_unix.cpp:360
#8  0x00007f53d54316db in start_thread (arg=0x7f53b0cb8700) at pthread_create.c:463
#9  0x00007f53d9c0b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f53ba4e9700 (LWP 30451)):
#0  0x00007f53d54379f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x562acc661498) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x562acc661448, cond=0x562acc661470) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x562acc661470, mutex=0x562acc661448) at pthread_cond_wait.c:655
#3  0x00007f53bb5992cb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f53bb598ff7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f53d54316db in start_thread (arg=0x7f53ba4e9700) at pthread_create.c:463
#6  0x00007f53d9c0b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f53c2f19700 (LWP 30450)):
#0  QListData::end (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:118
#1  QList<QTimerInfo*>::constEnd (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:347
#2  QTimerInfoList::timerWait (this=0x7f53bc004cf0, tm=...) at kernel/qtimerinfo_unix.cpp:393
#3  0x00007f53da55173e in timerSourcePrepareHelper (timeout=0x7f53c2f18ba4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:133
#4  timerSourcePrepare (source=<optimized out>, timeout=0x7f53c2f18ba4) at kernel/qeventdispatcher_glib.cpp:166
#5  0x00007f53d3071b28 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f53d30724fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f53d30726dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f53da5519db in QEventDispatcherGlib::processEvents (this=0x7f53bc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#9  0x00007f53da4f1eaa in QEventLoop::exec (this=this@entry=0x7f53c2f18d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#10 0x00007f53da30d3ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#11 0x00007f53da9c80e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#12 0x00007f53da30eb72 in QThreadPrivate::start (arg=0x7f53dac3fd80) at thread/qthread_unix.cpp:360
#13 0x00007f53d54316db in start_thread (arg=0x7f53c2f19700) at pthread_create.c:463
#14 0x00007f53d9c0b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f53cae28700 (LWP 30449)):
#0  0x00007f53d9bfebf9 in __GI___poll (fds=0x7f53cae27ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f53d4ff5747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f53d4ff736a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f53cdc0df00 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f53da30eb72 in QThreadPrivate::start (arg=0x562acc4eaf30) at thread/qthread_unix.cpp:360
#5  0x00007f53d54316db in start_thread (arg=0x7f53cae28700) at pthread_create.c:463
#6  0x00007f53d9c0b88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f53de6ca800 (LWP 30447)):
[KCrash Handler]
#6  QQuickWindowPrivate::dirtyItem (this=0x100000000) at items/qquickwindow.cpp:1158
#7  0x00007f53d863fd65 in QQuickItemPrivate::dirty (this=<optimized out>, type=<optimized out>) at items/qquickitem.cpp:6135
#8  0x00007f53d86401be in QQuickItem::update (this=<optimized out>) at items/qquickitem.cpp:4439
#9  0x00007f53d86a47b2 in QQuickText::setLinkColor (this=0x562ad46b0010, color=...) at items/qquicktext.cpp:1751
#10 0x00007f53d86ad6eb in QQuickText::qt_static_metacall (_o=_o@entry=0x562ad46b0010, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=3, _a=_a@entry=0x7fff6003b520) at .moc/moc_qquicktext_p.cpp:885
#11 0x00007f53d86adb83 in QQuickText::qt_metacall (this=this@entry=0x562ad46b0010, _c=_c@entry=QMetaObject::WriteProperty, _id=3, _a=_a@entry=0x7fff6003b520) at .moc/moc_qquicktext_p.cpp:966
#12 0x00007f53c92f69d5 in QQuickLabel::qt_metacall (this=0x562ad46b0010, _c=QMetaObject::WriteProperty, _id=<optimized out>, _a=0x7fff6003b520) at .moc/moc_qquicklabel_p.cpp:318
#13 0x00007f53d80907c6 in QV4::QQmlValueTypeWrapper::write (this=this@entry=0x7f53a457d4c8, target=0x562ad46b0010, propertyIndex=47) at qml/qqmlvaluetypewrapper.cpp:331
#14 0x00007f53d80892c4 in GenericBinding<0>::write (this=0x562ad46b09a0, result=..., isUndefined=<optimized out>, flags=...) at qml/qqmlbinding.cpp:318
#15 0x00007f53d808a417 in QQmlNonbindingBinding::doUpdate (this=0x562ad46b09a0, watcher=..., flags=..., scope=...) at qml/qqmlbinding.cpp:249
#16 0x00007f53d80869e3 in QQmlBinding::update (this=0x562ad46b09a0, flags=...) at qml/qqmlbinding.cpp:185
#17 0x00007f53d80600e2 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#18 0x00007f53d8007439 in QQmlData::signalEmitted (object=0x562ad46c63f0, index=<optimized out>, a=0x0) at qml/qqmlengine.cpp:887
#19 0x00007f53da523f37 in QMetaObject::activate (sender=0x562ad46c63f0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3678
#20 0x00007f53da524dd7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f53ab5b4960 <Kirigami::PlatformTheme::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3660
#21 0x00007f53ab3a58d0 in Kirigami::PlatformTheme::colorsChanged (this=<optimized out>) at ./obj-x86_64-linux-gnu/src/libkirigami/KF5Kirigami2_autogen/include/moc_platformtheme.cpp:399
#22 0x00007f53ab3a65b0 in Kirigami::PlatformThemePrivate::<lambda()>::operator() (__closure=0x562ad42f3440) at ./src/libkirigami/platformtheme.cpp:191
#23 QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, Kirigami::PlatformThemePrivate::emitCompressedColorChanged()::<lambda()> >::call (arg=<optimized out>, f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:146
#24 QtPrivate::Functor<Kirigami::PlatformThemePrivate::emitCompressedColorChanged()::<lambda()>, 0>::call<QtPrivate::List<>, void> (arg=<optimized out>, f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:256
#25 QtPrivate::QFunctorSlotObject<Kirigami::PlatformThemePrivate::emitCompressedColorChanged()::<lambda()>, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x562ad42f3430, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:439
#26 0x00007f53da525272 in QObject::event (this=0x562ad46c63f0, e=<optimized out>) at kernel/qobject.cpp:1260
#27 0x00007f53db587eac in QApplicationPrivate::notify_helper (this=this@entry=0x562acc4e7870, receiver=receiver@entry=0x562ad46c63f0, e=e@entry=0x562ad4569450) at kernel/qapplication.cpp:3703
#28 0x00007f53db58f4b0 in QApplication::notify (this=0x7fff6003d8b0, receiver=0x562ad46c63f0, e=0x562ad4569450) at kernel/qapplication.cpp:3449
#29 0x00007f53da4f3d48 in QCoreApplication::notifyInternal2 (receiver=0x562ad46c63f0, event=0x562ad4569450) at kernel/qcoreapplication.cpp:1095
#30 0x00007f53da4f3f1e in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x562ad4569450) at kernel/qcoreapplication.cpp:1490
#31 0x00007f53da4f6667 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x562acc4deff0) at kernel/qcoreapplication.cpp:1840
#32 0x00007f53da4f6bf8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1694
#33 0x00007f53da5523a3 in postEventSourceDispatch (s=0x562acc538010) at kernel/qeventdispatcher_glib.cpp:277
#34 0x00007f53d3072417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f53d3072650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f53d30726dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f53da5519bf in QEventDispatcherGlib::processEvents (this=0x562acc5416c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#38 0x00007f53da4f1eaa in QEventLoop::exec (this=this@entry=0x7fff6003d7d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#39 0x00007f53da4fb220 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1403
#40 0x0000562acb93b218 in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:71

Possible duplicates by query: bug 413772, bug 413423, bug 413417, bug 413402, bug 413380.

Reported using DrKonqi