Application: systemsettings5 (5.4.1)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-16-generic x86_64
Distribution: Ubuntu 15.10

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

Systems settings crash while looking at video settings. I tried to find one but even wehn I find a crash bug related as i am sure this has been reported a billion times while we wait for a fix, it wouldn't let me select one. so I am writing this duplicate here. Sorry.

The crash can be reproduced every time.

-- 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 0x7f67446c5800 (LWP 3128))]

Thread 6 (Thread 0x7f673248b700 (LWP 3129)):
#0  0x00007f6740e278dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f673eb05bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f673eb0774f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f67352b4a39 in QXcbEventReader::run (this=0x1a17a40) at qxcbconnection.cpp:1105
#4  0x00007f67415262be in QThreadPrivate::start (arg=0x1a17a40) at thread/qthread_unix.cpp:337
#5  0x00007f673e27b6aa in start_thread (arg=0x7f673248b700) at pthread_create.c:333
#6  0x00007f6740e32eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f6722ee3700 (LWP 3134)):
#0  0x00007ffcfe75e949 in ?? ()
#1  0x00007ffcfe75ec75 in clock_gettime ()
#2  0x00007f6740e4138d in __GI___clock_gettime (clock_id=<optimized out>, tp=tp@entry=0x7f6722ee2b10) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f67415d73a6 in qt_clock_gettime (ts=0x7f6722ee2b10, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#5  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#6  0x00007f674175ad29 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f671c002ed0) at kernel/qtimerinfo_unix.cpp:84
#7  0x00007f674175b295 in QTimerInfoList::timerWait (this=0x7f671c002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#8  0x00007f674175c67e in timerSourcePrepareHelper (timeout=0x7f6722ee2be4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#9  timerSourcePrepare (source=<optimized out>, timeout=0x7f6722ee2be4) at kernel/qeventdispatcher_glib.cpp:160
#10 0x00007f673dd5577d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f673dd5611b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f673dd562fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f674175d29b in QEventDispatcherGlib::processEvents (this=0x7f671c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00007f674170375a in QEventLoop::exec (this=this@entry=0x7f6722ee2da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007f67415213d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#16 0x00007f673fe88f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f67415262be in QThreadPrivate::start (arg=0x1dbd1e0) at thread/qthread_unix.cpp:337
#18 0x00007f673e27b6aa in start_thread (arg=0x7f6722ee3700) at pthread_create.c:333
#19 0x00007f6740e32eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f670ffff700 (LWP 3141)):
#0  0x00007f6740e278dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f673dd561ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f673dd562fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f674175d29b in QEventDispatcherGlib::processEvents (this=0x7f67080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f674170375a in QEventLoop::exec (this=this@entry=0x7f670fffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f67415213d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f673fe88f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f67415262be in QThreadPrivate::start (arg=0x2b84430) at thread/qthread_unix.cpp:337
#8  0x00007f673e27b6aa in start_thread (arg=0x7f670ffff700) at pthread_create.c:333
#9  0x00007f6740e32eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f67163eb700 (LWP 3257)):
#0  0x00007f673dd9a884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f673dd5610e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f673dd562fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f673dd56339 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f673dd7c965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f673e27b6aa in start_thread (arg=0x7f67163eb700) at pthread_create.c:333
#6  0x00007f6740e32eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f66fffff700 (LWP 3258)):
#0  0x00007f6740e278dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f673dd561ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f673dd56572 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f66ebd5c4c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f673dd7c965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f673e27b6aa in start_thread (arg=0x7f66fffff700) at pthread_create.c:333
#6  0x00007f6740e32eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f67446c5800 (LWP 3128)):
[KCrash Handler]
#6  0x00007f6740159fb2 in QQuickItemPrivate::addToDirtyList() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f674015a053 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f6740164935 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f6741737651 in QObject::event (this=0x4be2df0, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007f674016410b in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f6742ba5b8c in QApplicationPrivate::notify_helper (this=this@entry=0x19e9d60, receiver=receiver@entry=0x4be2df0, e=e@entry=0x7f66bc1671d0) at kernel/qapplication.cpp:3720
#12 0x00007f6742bab230 in QApplication::notify (this=0x7ffcfe74f9f0, receiver=0x4be2df0, e=0x7f66bc1671d0) at kernel/qapplication.cpp:3503
#13 0x00007f6741705f1b in QCoreApplication::notifyInternal (this=0x7ffcfe74f9f0, receiver=0x4be2df0, event=event@entry=0x7f66bc1671d0) at kernel/qcoreapplication.cpp:935
#14 0x00007f6741708057 in QCoreApplication::sendEvent (event=0x7f66bc1671d0, 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=0x19e93a0) at kernel/qcoreapplication.cpp:1552
#16 0x00007f6741708588 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007f674175ce73 in postEventSourceDispatch (s=0x1a57560) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007f673dd55ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f673dd56250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f673dd562fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f674175d27f in QEventDispatcherGlib::processEvents (this=0x1a5c3c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007f674170375a in QEventLoop::exec (this=this@entry=0x7ffcfe74f8d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007f674170b2cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#24 0x00007f67425ec00c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#25 0x00007f6742ba2025 in QApplication::exec () at kernel/qapplication.cpp:2956
#26 0x000000000040f04b in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:55

Possible duplicates by query: bug 354011, bug 353945, bug 353782, bug 353583, bug 353472.

Reported using DrKonqi