Application: systemsettings5 (5.3.1)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-18-generic x86_64
Distribution: Netrunner 16

-- Information about the crash:
- What I was doing when the application crashed:
The settings panel crash often when you go in display settings and you click on "full view" (vue d'ensemble en francais)

The crash can be reproduced sometimes.

-- Backtrace:
Application: Configuration du système (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f46ce898780 (LWP 3091))]

Thread 3 (Thread 0x7f46bc003700 (LWP 3092)):
#0  0x00007f46cb0038dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f46c931cb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f46c931e64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f46bedbe099 in QXcbEventReader::run (this=0x1c1aef0) at qxcbconnection.cpp:1105
#4  0x00007f46cb684b0e in QThreadPrivate::start (arg=0x1c1aef0) at thread/qthread_unix.cpp:337
#5  0x00007f46c82366aa in start_thread (arg=0x7f46bc003700) at pthread_create.c:333
#6  0x00007f46cb00eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f46ab47d700 (LWP 3094)):
#0  0x00007f46cb0038dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f46c7d17ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f46c7d18242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f46ab985ae6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f46c7d3e955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f46c82366aa in start_thread (arg=0x7f46ab47d700) at pthread_create.c:333
#6  0x00007f46cb00eeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f46ce898780 (LWP 3091)):
[KCrash Handler]
#6  0x00007f46ca10bd7e in QQuickItemPrivate::addToDirtyList() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f46ca10be28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f46ca116045 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f46cb8f473a in QObject::event (this=0x24da9a0, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007f46ca114b6b in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f46cc6aeb2c in QApplicationPrivate::notify_helper (this=0x1bed930, receiver=0x24da9a0, e=0x7f4694158ba0) at kernel/qapplication.cpp:3720
#12 0x00007f46cc6b4000 in QApplication::notify (this=0x7ffcc5e34b90, receiver=0x24da9a0, e=0x7f4694158ba0) at kernel/qapplication.cpp:3503
#13 0x00007f46cb8c2c2b in QCoreApplication::notifyInternal (this=0x7ffcc5e34b90, receiver=0x24da9a0, event=event@entry=0x7f4694158ba0) at kernel/qcoreapplication.cpp:935
#14 0x00007f46cb8c4c9b in sendEvent (event=0x7f4694158ba0, 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=0x1becb50) at kernel/qcoreapplication.cpp:1552
#16 0x00007f46cb8c5298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007f46cb91b843 in postEventSourceDispatch (s=0x1c55cd0) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007f46c7d17c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f46c7d17f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f46c7d17fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f46cb91bc57 in QEventDispatcherGlib::processEvents (this=0x1c56990, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007f46cb8c03e2 in QEventLoop::exec (this=this@entry=0x7ffcc5e34a70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007f46cb8c802c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#24 0x00007f46cc0e931c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#25 0x00007f46cc6aa7a5 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