Application: systemsettings5 (5.3.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-25-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
I'm pretty sure I was changing the nvidia drivers over to 355 from X.Org as they keep reverting back - What I was doing when the application crashed:

I've been getting splicing when scrolling, found it to be the drivers keep setting back to X.Org drivers - Unusual behavior I noticed:

I was also turning off all the desktop effects I could - Custom settings of the application:

-- 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 0x7ff1aa5c5780 (LWP 8126))]

Thread 4 (Thread 0x7ff198cf0700 (LWP 8127)):
#0  0x00007ff1a6d248dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff1a5038b72 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff1a503a64f in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff19baae099 in QXcbEventReader::run() (this=0xa03710) at qxcbconnection.cpp:1105
#4  0x00007ff1a73a5b0e in QThreadPrivate::start(void*) (arg=0xa03710) at thread/qthread_unix.cpp:337
#5  0x00007ff1a3f566aa in start_thread (arg=0x7ff198cf0700) at pthread_create.c:333
#6  0x00007ff1a6d2feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7ff17dcab700 (LWP 8158)):
#0  0x00007ff1a3a37444 in g_main_context_prepare (context=context@entry=0x7ff1700cbb10, priority=priority@entry=0x7ff17dcaace0) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3458
#1  0x00007ff1a3a37de8 in g_main_context_iterate (context=context@entry=0x7ff1700cbb10, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3788
#2  0x00007ff1a3a37fcc in g_main_context_iteration (context=0x7ff1700cbb10, may_block=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#3  0x00007ff1a763cc6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff170131060, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007ff1a75e13e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff17dcaae20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ff1a73a0b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007ff1a636af65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ff1a73a5b0e in QThreadPrivate::start(void*) (arg=0x232a2c0) at thread/qthread_unix.cpp:337
#8  0x00007ff1a3f566aa in start_thread (arg=0x7ff17dcab700) at pthread_create.c:333
#9  0x00007ff1a6d2feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ff16af79700 (LWP 8160)):
#0  0x00007ff1a6d2049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff19fcba073 in  () at /usr/lib/nvidia-355/tls/libnvidia-tls.so.355.06
#2  0x00007ff1a3a7b2f0 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7ff16af78c10, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#3  0x00007ff1a3a7b2f0 in g_wakeup_acknowledge (wakeup=0x7ff16c002200) at /build/buildd/glib2.0-2.44.1/./glib/gwakeup.c:210
#4  0x00007ff1a3a3796c in g_main_context_check (context=context@entry=0x7ff16401f3d0, max_priority=2147483647, fds=fds@entry=0x7ff164116950, n_fds=n_fds@entry=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3600
#5  0x00007ff1a3a37e60 in g_main_context_iterate (context=context@entry=0x7ff16401f3d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3805
#6  0x00007ff1a3a37fcc in g_main_context_iteration (context=0x7ff16401f3d0, may_block=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#7  0x00007ff1a763cc6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ff1640ef350, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#8  0x00007ff1a75e13e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ff16af78e20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007ff1a73a0b44 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#10 0x00007ff1a636af65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007ff1a73a5b0e in QThreadPrivate::start(void*) (arg=0x1a16980) at thread/qthread_unix.cpp:337
#12 0x00007ff1a3f566aa in start_thread (arg=0x7ff16af79700) at pthread_create.c:333
#13 0x00007ff1a6d2feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ff1aa5c5780 (LWP 8126)):
[KCrash Handler]
#6  0x00007ff1a5e2cd7e in QQuickItemPrivate::addToDirtyList() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007ff1a5e2ce28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007ff1a5e37045 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007ff1a761573a in QObject::event(QEvent*) (this=0x110efc0, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007ff1a5e35b6b in QQuickItem::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007ff1a83d2b2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=0x9d5ba0, receiver=0x110efc0, e=0x7ff1800456c0) at kernel/qapplication.cpp:3720
#12 0x00007ff1a83d8000 in QApplication::notify(QObject*, QEvent*) (this=0x7ffd4e142320, receiver=0x110efc0, e=0x7ff1800456c0) at kernel/qapplication.cpp:3503
#13 0x00007ff1a75e3c2b in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffd4e142320, receiver=0x110efc0, event=event@entry=0x7ff1800456c0) at kernel/qcoreapplication.cpp:935
#14 0x00007ff1a75e5c9b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x7ff1800456c0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#15 0x00007ff1a75e5c9b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x9d4dc0) at kernel/qcoreapplication.cpp:1552
#16 0x00007ff1a75e6298 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007ff1a763c843 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0xa3e8d0) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007ff1a3a37c3d in g_main_context_dispatch (context=0x7ff194001710) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3122
#19 0x00007ff1a3a37c3d in g_main_context_dispatch (context=context@entry=0x7ff194001710) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3737
#20 0x00007ff1a3a37f20 in g_main_context_iterate (context=context@entry=0x7ff194001710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3808
#21 0x00007ff1a3a37fcc in g_main_context_iteration (context=0x7ff194001710, may_block=1) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#22 0x00007ff1a763cc57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0xa43260, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#23 0x00007ff1a75e13e2 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd4e142200, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#24 0x00007ff1a75e902c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1188
#25 0x00007ff1a7e0d31c in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1510
#26 0x00007ff1a83ce7a5 in QApplication::exec() () at kernel/qapplication.cpp:2956
#27 0x000000000040ef6b in main(int, char**) (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Reported using DrKonqi