Application: systemsettings5 (5.4.1)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-10-generic x86_64
Distribution: Ubuntu Wily Werewolf (development branch)

-- Information about the crash:
- What I was doing when the application crashed: Selected Multimedia or Display & Monitor from the System Settings application. May be related to 346519

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 0x7fc4eb9b3800 (LWP 17820))]

Thread 3 (Thread 0x7fc4d8a72700 (LWP 17821)):
#0  0x00007fc4e81738dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc4e5e81bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fc4e5e8374f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fc4db80b9e9 in QXcbEventReader::run (this=0xeefbf0) at qxcbconnection.cpp:1105
#4  0x00007fc4e886525e in QThreadPrivate::start (arg=0xeefbf0) at thread/qthread_unix.cpp:337
#5  0x00007fc4e560c6aa in start_thread (arg=0x7fc4d8a72700) at pthread_create.c:333
#6  0x00007fc4e817eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fc4c2b89700 (LWP 17830)):
#0  0x00007fc4e81738dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc4e50ed1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4e50ed2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4e8a9be1b in QEventDispatcherGlib::processEvents (this=0x7fc4a80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fc4e8a422da in QEventLoop::exec (this=this@entry=0x7fc4c2b88da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fc4e8860374 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fc4e71e8f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fc4e886525e in QThreadPrivate::start (arg=0x1399d90) at thread/qthread_unix.cpp:337
#8  0x00007fc4e560c6aa in start_thread (arg=0x7fc4c2b89700) at pthread_create.c:333
#9  0x00007fc4e817eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fc4eb9b3800 (LWP 17820)):
[KCrash Handler]
#6  0x00007fc4e80ad267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007fc4e80aeeca in __GI_abort () at abort.c:89
#8  0x00007fc4e8852c28 in qt_message_fatal (context=..., message=...) at global/qlogging.cpp:1422
#9  QMessageLogger::fatal (this=<optimized out>, msg=<optimized out>) at global/qlogging.cpp:643
#10 0x00007fc4e749c511 in QSGRenderLoop::handleContextCreationFailure(QQuickWindow*, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fc4e74a4514 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fc4e74a493b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007fc4e98fc855 in QWindow::event (this=0x133d480, ev=<optimized out>) at kernel/qwindow.cpp:2058
#14 0x00007fc4e74d4fd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007fc4e9e9fb8c in QApplicationPrivate::notify_helper (this=this@entry=0xec3cf0, receiver=receiver@entry=0x133d480, e=e@entry=0x7fff422bec20) at kernel/qapplication.cpp:3720
#16 0x00007fc4e9ea5230 in QApplication::notify (this=0x7fff422bf000, receiver=0x133d480, e=0x7fff422bec20) at kernel/qapplication.cpp:3503
#17 0x00007fc4e8a44a9b in QCoreApplication::notifyInternal (this=0x7fff422bf000, receiver=receiver@entry=0x133d480, event=event@entry=0x7fff422bec20) at kernel/qcoreapplication.cpp:935
#18 0x00007fc4e98f53c6 in QCoreApplication::sendSpontaneousEvent (event=0x7fff422bec20, receiver=0x133d480) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QGuiApplicationPrivate::processExposeEvent (e=0x1330e90) at kernel/qguiapplication.cpp:2616
#20 0x00007fc4e98f610d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x1330e90) at kernel/qguiapplication.cpp:1638
#21 0x00007fc4e98db648 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#22 0x00007fc4db8381e0 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#23 0x00007fc4e50ecff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fc4e50ed250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fc4e50ed2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fc4e8a9bdff in QEventDispatcherGlib::processEvents (this=0xf31520, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#27 0x00007fc4e8a422da in QEventLoop::exec (this=this@entry=0x7fff422beee0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#28 0x00007fc4e8a49e4c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#29 0x00007fc4e98ec09c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#30 0x00007fc4e9e9c025 in QApplication::exec () at kernel/qapplication.cpp:2956
#31 0x000000000040ef7b in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Possible duplicates by query: bug 353057, bug 352840, bug 352098, bug 351793, bug 351424.

Reported using DrKonqi