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:

started my amplifier for HDMI sound out
wanted to check the resolution and so on and then the crash.

kubuntu 15.04

-- Backtrace:
Application: Systemeinstellungen (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2d4355f780 (LWP 14280))]

Thread 3 (Thread 0x7f2d30bf4700 (LWP 14281)):
#0  0x00007f2d3fcd18dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2d3dfebb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f2d3dfed64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f2d339b6099 in QXcbEventReader::run (this=0x121ba50) at qxcbconnection.cpp:1105
#4  0x00007f2d40352b0e in QThreadPrivate::start (arg=0x121ba50) at thread/qthread_unix.cpp:337
#5  0x00007f2d3cf056aa in start_thread (arg=0x7f2d30bf4700) at pthread_create.c:333
#6  0x00007f2d3fcdceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f2d21530700 (LWP 15331)):
#0  0x00007f2d3c9e6340 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2d3c9e6de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2d3c9e7242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2d21a38ae6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f2d3ca0d955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2d3cf056aa in start_thread (arg=0x7f2d21530700) at pthread_create.c:333
#6  0x00007f2d3fcdceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f2d4355f780 (LWP 14280)):
[KCrash Handler]
#6  0x00007f2d3edeede0 in QQuickWindow::maybeUpdate() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f2d3eddae28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f2d3ede5045 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f2d405c273a in QObject::event (this=0x227a130, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007f2d3ede3b6b in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f2d4137cb2c in QApplicationPrivate::notify_helper (this=0x11ee550, receiver=0x227a130, e=0x7f2d003b7d70) at kernel/qapplication.cpp:3720
#12 0x00007f2d41382000 in QApplication::notify (this=0x7fff3c2e08c0, receiver=0x227a130, e=0x7f2d003b7d70) at kernel/qapplication.cpp:3503
#13 0x00007f2d40590c2b in QCoreApplication::notifyInternal (this=0x7fff3c2e08c0, receiver=0x227a130, event=event@entry=0x7f2d003b7d70) at kernel/qcoreapplication.cpp:935
#14 0x00007f2d40592c9b in sendEvent (event=0x7f2d003b7d70, 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=0x11ed770) at kernel/qcoreapplication.cpp:1552
#16 0x00007f2d40593298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007f2d405e9843 in postEventSourceDispatch (s=0x1267090) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007f2d3c9e6c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f2d3c9e6f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f2d3c9e6fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f2d405e9c57 in QEventDispatcherGlib::processEvents (this=0x1267070, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007f2d4058e3e2 in QEventLoop::exec (this=this@entry=0x7fff3c2e07a0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007f2d4059602c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#24 0x00007f2d40db731c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#25 0x00007f2d413787a5 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