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 come back to the main screen of System Properties from the Power Administration section

The crash can be reproduced sometimes.

-- Backtrace:
Application: Preferencias del sistema (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fde42105780 (LWP 2637))]

Thread 3 (Thread 0x7fde2f601700 (LWP 2638)):
#0  0x00007fde3e8718dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fde3cb8bb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fde3cb8d64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fde323bd099 in QXcbEventReader::run (this=0xea2e40) at qxcbconnection.cpp:1105
#4  0x00007fde3eef2b0e in QThreadPrivate::start (arg=0xea2e40) at thread/qthread_unix.cpp:337
#5  0x00007fde3baa56aa in start_thread (arg=0x7fde2f601700) at pthread_create.c:333
#6  0x00007fde3e87ceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fde1ff65700 (LWP 2639)):
#0  0x00007fde3e86d49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fde379e7f85 in ?? () from /usr/lib/nvidia-349/tls/libnvidia-tls.so.349.16
#2  0x00007fde3b5ca2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde3b58696c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fde3b586e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fde3b587242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fde2046dae6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007fde3b5ad955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fde3baa56aa in start_thread (arg=0x7fde1ff65700) at pthread_create.c:333
#9  0x00007fde3e87ceed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fde42105780 (LWP 2637)):
[KCrash Handler]
#6  0x00007fde3d97ad6b in QQuickItemPrivate::addToDirtyList() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fde3d97ae28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fde3d985045 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fde3f16273a in QObject::event (this=0x1d4f940, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007fde3d983b6b in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fde3ff1cb2c in QApplicationPrivate::notify_helper (this=0xe75910, receiver=0x1d4f940, e=0x7fddf8176340) at kernel/qapplication.cpp:3720
#12 0x00007fde3ff22000 in QApplication::notify (this=0x7ffd499e6280, receiver=0x1d4f940, e=0x7fddf8176340) at kernel/qapplication.cpp:3503
#13 0x00007fde3f130c2b in QCoreApplication::notifyInternal (this=0x7ffd499e6280, receiver=0x1d4f940, event=event@entry=0x7fddf8176340) at kernel/qcoreapplication.cpp:935
#14 0x00007fde3f132c9b in sendEvent (event=0x7fddf8176340, 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=0xe74b30) at kernel/qcoreapplication.cpp:1552
#16 0x00007fde3f133298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007fde3f189843 in postEventSourceDispatch (s=0xee1f20) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007fde3b586c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fde3b586f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fde3b586fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fde3f189c57 in QEventDispatcherGlib::processEvents (this=0xeeec20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007fde3f12e3e2 in QEventLoop::exec (this=this@entry=0x7ffd499e6160, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007fde3f13602c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#24 0x00007fde3f95731c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#25 0x00007fde3ff187a5 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