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:
selected rendering backend as opengl3.1 in kde settings on dell  studio xps 1645 running kubuntu 15.04 when it crashed

-- 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 0x7ff301ee8780 (LWP 2567))]

Thread 3 (Thread 0x7ff2f2750700 (LWP 2568)):
#0  0x00007ff2fe64e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff2fc968b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff2fc96a64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff2f54e3099 in QXcbEventReader::run (this=0x2132930) at qxcbconnection.cpp:1105
#4  0x00007ff2feccfb0e in QThreadPrivate::start (arg=0x2132930) at thread/qthread_unix.cpp:337
#5  0x00007ff2fb8826aa in start_thread (arg=0x7ff2f2750700) at pthread_create.c:333
#6  0x00007ff2fe659eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ff2d6ffe700 (LWP 2597)):
#0  0x00007ff2fe64e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff2fb363ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff2fb364242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff2d4beaae6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ff2fb38a955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff2fb8826aa in start_thread (arg=0x7ff2d6ffe700) at pthread_create.c:333
#6  0x00007ff2fe659eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ff301ee8780 (LWP 2567)):
[KCrash Handler]
#6  0x00007ff2fd757d6b in QQuickItemPrivate::addToDirtyList() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007ff2fd757e28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007ff2fd762045 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007ff2fef3f73a in QObject::event (this=0x384f7b0, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007ff2fd760b6b in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007ff2ffcf9b2c in QApplicationPrivate::notify_helper (this=0x2119e70, receiver=0x384f7b0, e=0x7ff28c04c130) at kernel/qapplication.cpp:3720
#12 0x00007ff2ffcff000 in QApplication::notify (this=0x7ffd5ab57b40, receiver=0x384f7b0, e=0x7ff28c04c130) at kernel/qapplication.cpp:3503
#13 0x00007ff2fef0dc2b in QCoreApplication::notifyInternal (this=0x7ffd5ab57b40, receiver=0x384f7b0, event=event@entry=0x7ff28c04c130) at kernel/qcoreapplication.cpp:935
#14 0x00007ff2fef0fc9b in sendEvent (event=0x7ff28c04c130, 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=0x21190c0) at kernel/qcoreapplication.cpp:1552
#16 0x00007ff2fef10298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007ff2fef66843 in postEventSourceDispatch (s=0x215b560) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007ff2fb363c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007ff2fb363f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007ff2fb363fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007ff2fef66c57 in QEventDispatcherGlib::processEvents (this=0x215b540, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007ff2fef0b3e2 in QEventLoop::exec (this=this@entry=0x7ffd5ab57a20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007ff2fef1302c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#24 0x00007ff2ff73431c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#25 0x00007ff2ffcf57a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#26 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi