Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

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

I was browsing the system settings after upgrading to Kubuntu 15.04.

-- 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 0x7fd2b78f0780 (LWP 3219))]

Thread 2 (Thread 0x7fd2a50fb700 (LWP 3220)):
#0  0x00007fd2b406e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fd2b2388b72 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd2b238a64f in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd2a7ec9099 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#4  0x00007fd2b46efb0e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd2b12a26aa in start_thread (arg=0x7fd2a50fb700) at pthread_create.c:333
#6  0x00007fd2b4079eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fd2b78f0780 (LWP 3219)):
[KCrash Handler]
#6  0x00007fd2b3177d6b in QQuickItemPrivate::addToDirtyList() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fd2b3177e28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fd2b3182045 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fd2b495f73a in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fd2b3180b6b in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fd2b5719b2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007fd2b571f000 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007fd2b492dc2b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fd2b492fc9b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fd2b4986843 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007fd2b0d83c3d in g_main_context_dispatch (context=0x7fd2a0001710) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3122
#17 0x00007fd2b0d83c3d in g_main_context_dispatch (context=context@entry=0x7fd2a0001710) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3737
#18 0x00007fd2b0d83f20 in g_main_context_iterate (context=context@entry=0x7fd2a0001710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3808
#19 0x00007fd2b0d83fcc in g_main_context_iteration (context=0x7fd2a0001710, may_block=1) at /build/buildd/glib2.0-2.44.0/./glib/gmain.c:3869
#20 0x00007fd2b4986c57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007fd2b492b3e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fd2b493302c in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x000000000040eebc in main ()

Reported using DrKonqi