Application: systemsettings5 (5.3.1)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-20-generic x86_64
Distribution: Ubuntu 15.04

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

i am clicking Display and Monitor and then going back (clicking Overview). It crashes every time

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1f55235780 (LWP 1805))]

Thread 2 (Thread 0x7f1f4292e700 (LWP 1806)):
#0  0x00007f1f519978dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1f4fcb1b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f1f4fcb364f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f1f456c1099 in QXcbEventReader::run (this=0x173a9f0) at qxcbconnection.cpp:1105
#4  0x00007f1f52018b0e in QThreadPrivate::start (arg=0x173a9f0) at thread/qthread_unix.cpp:337
#5  0x00007f1f4ebcb6aa in start_thread (arg=0x7f1f4292e700) at pthread_create.c:333
#6  0x00007f1f519a2eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f1f55235780 (LWP 1805)):
[KCrash Handler]
#6  0x00007f1f50aa0d7e in QQuickItemPrivate::addToDirtyList() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f1f50aa0e28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f1f50aab045 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f1f5228873a in QObject::event (this=0x212c710, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007f1f50aa9b6b in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f1f53042b2c in QApplicationPrivate::notify_helper (this=0x170c550, receiver=0x212c710, e=0x7f1f00143490) at kernel/qapplication.cpp:3720
#12 0x00007f1f53048000 in QApplication::notify (this=0x7ffcd1087820, receiver=0x212c710, e=0x7f1f00143490) at kernel/qapplication.cpp:3503
#13 0x00007f1f52256c2b in QCoreApplication::notifyInternal (this=0x7ffcd1087820, receiver=0x212c710, event=event@entry=0x7f1f00143490) at kernel/qcoreapplication.cpp:935
#14 0x00007f1f52258c9b in sendEvent (event=0x7f1f00143490, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x170b770) at kernel/qcoreapplication.cpp:1552
#16 0x00007f1f52259298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007f1f522af843 in postEventSourceDispatch (s=0x17868f0) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007f1f4e6acc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f1f4e6acf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f1f4e6acfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f1f522afc57 in QEventDispatcherGlib::processEvents (this=0x177a500, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007f1f522543e2 in QEventLoop::exec (this=this@entry=0x7ffcd1087700, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007f1f5225c02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#24 0x00007f1f52a7d31c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#25 0x00007f1f5303e7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#26 0x000000000040ef6b in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Reported using DrKonqi