Application: systemsettings5 (5.2.0)

Qt Version: 5.4.0
Operating System: Linux 3.18.3-201.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

-- Information about the crash:
I'm running a Plasma 5.2 on Fedora 21.

Step to reproduce:
1) Open Systemsetting
2) Enter in the "Display and Monitor" page
3) Go out clicking on the upper left button  "< Overview"
4) Systemsetting crash.

It is 100% reproducible on my system (Nvidia card, proprietary driver)

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f31ef102880 (LWP 3333))]

Thread 2 (Thread 0x7f31d581f700 (LWP 3334)):
#0  0x00007f31ea35e1fd in poll () at /lib64/libc.so.6
#1  0x00007f31e9694182 in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f31e9695cff in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f31d8dc8959 in QXcbEventReader::run() () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007f31eaef74ce in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f31e869c52a in start_thread () at /lib64/libpthread.so.0
#6  0x00007f31ea36979d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f31ef102880 (LWP 3333)):
[KCrash Handler]
#5  0x00007f31c829a7a0 in QQuickWindow::maybeUpdate() () at /lib64/libQt5Quick.so.5
#6  0x00007f31c8286ac8 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () at /lib64/libQt5Quick.so.5
#7  0x00007f31c8290be5 in QQuickItem::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Quick.so.5
#8  0x00007f31eb112c2a in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#9  0x00007f31c828f76b in QQuickItem::event(QEvent*) () at /lib64/libQt5Quick.so.5
#10 0x00007f31ebf45d3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#11 0x00007f31ebf4b330 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#12 0x00007f31eb0e24ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#13 0x00007f31eb0e44eb in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#14 0x00007f31eb139333 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#15 0x00007f31e78e2aeb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#16 0x00007f31e78e2e88 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#17 0x00007f31e78e2f3c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#18 0x00007f31eb139727 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#19 0x00007f31eb0dfd42 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#20 0x00007f31eb0e77ec in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#21 0x000000000040e2fc in main ()

Reported using DrKonqi