Application: systemsettings (1.0)
KDE Platform Version: 4.10.00
Qt Version: 4.8.3
Operating System: Linux 3.5.0-25-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
I was in the Phonon configuration and I was testing my speakes by pressing the "Front Left" and "Front Right" buttons.

- Unusual behavior I noticed:
I Changed the connector from "Headphones" to "Speakers" and I got this crash.

I tried a couple of times to reproduce the bug, but I could not succeed to make it crash again.

-- Backtrace:
Application: System Settings (systemsettings), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbcbf4cc7c0 (LWP 15540))]

Thread 3 (Thread 0x7fbca1957700 (LWP 15541)):
#0  0x00007fbcb619305d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7fbc9c000a90) at pthread_mutex_unlock.c:290
#2  0x00007fbcb5cfde51 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbcb5cc0066 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbcb5cc0c64 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbcb5cc0ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fbcbcc5ec46 in QEventDispatcherGlib::processEvents (this=0x7fbc9c0008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007fbcbcc2f2ef in QEventLoop::processEvents (this=this@entry=0x7fbca1956cd0, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007fbcbcc2f578 in QEventLoop::exec (this=0x7fbca1956cd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007fbcbcb30b40 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007fbcbcc0f9df in QInotifyFileSystemWatcherEngine::run (this=0x1d98470) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007fbcbcb33b1c in QThreadPrivate::start (arg=0x1d98470) at thread/qthread_unix.cpp:338
#12 0x00007fbcb158d764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#13 0x00007fbcb618fe9a in start_thread (arg=0x7fbca1957700) at pthread_create.c:308
#14 0x00007fbcbc4e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fbc8f6f6700 (LWP 15844)):
#0  0x00007fbcbc4de303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbcb1a35b6f in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007fbcb1a270b5 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fbcb1a27719 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fbcb1a277d0 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fbcb1a35b1f in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fbcaf05d543 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-2.1.so
#7  0x00007fbcb158d764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#8  0x00007fbcb618fe9a in start_thread (arg=0x7fbc8f6f6700) at pthread_create.c:308
#9  0x00007fbcbc4e9cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fbcbf4cc7c0 (LWP 15540)):
[KCrash Handler]
#6  0x00007fbcbc42c425 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007fbcbc42fb8b in __GI_abort () at abort.c:91
#8  0x00007fbcb1a1f717 in pa_context_set_sink_port_by_index () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#9  0x00007fbc999e27e3 in AudioSetup::portChanged (this=0x1f29140) at ../../../phonon/kcm/audiosetup.cpp:731
#10 0x00007fbcbcc45f8f in QMetaObject::activate (sender=0x23ac820, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb2572d20) at kernel/qobject.cpp:3547
#11 0x00007fbcbdc635f1 in QComboBox::currentIndexChanged (this=this@entry=0x23ac820, _t1=0) at .moc/release-shared/moc_qcombobox.cpp:316
#12 0x00007fbcbdc63657 in QComboBoxPrivate::_q_emitCurrentIndexChanged (this=this@entry=0x2395430, index=...) at widgets/qcombobox.cpp:1278
#13 0x00007fbcbdc63860 in QComboBoxPrivate::setCurrentIndex (this=this@entry=0x2395430, mi=...) at widgets/qcombobox.cpp:2046
#14 0x00007fbcbdc644f4 in QComboBoxPrivate::_q_itemSelected (this=0x2395430, item=...) at widgets/qcombobox.cpp:1247
#15 0x00007fbcbcc45f8f in QMetaObject::activate (sender=0x24fd8b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb2572f90) at kernel/qobject.cpp:3547
#16 0x00007fbcbdef8482 in QComboBoxPrivateContainer::itemSelected (this=<optimized out>, _t1=...) at .moc/release-shared/moc_qcombobox_p.cpp:253
#17 0x00007fbcbdc5eb77 in QComboBoxPrivateContainer::eventFilter (this=0x24fd8b0, o=0x24f1520, e=0x7fffb25736e0) at widgets/qcombobox.cpp:691
#18 0x00007fbcbcc30706 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x24f1520, event=0x7fffb25736e0) at kernel/qcoreapplication.cpp:1025
#19 0x00007fbcbd88ce6c in QApplicationPrivate::notify_helper (this=this@entry=0x16b53d0, receiver=receiver@entry=0x24f1520, e=e@entry=0x7fffb25736e0) at kernel/qapplication.cpp:4558
#20 0x00007fbcbd891b6b in QApplication::notify (this=<optimized out>, receiver=0x24f1520, e=0x7fffb25736e0) at kernel/qapplication.cpp:4105
#21 0x00007fbcbe595636 in KApplication::notify (this=0x7fffb2574350, receiver=0x24f1520, event=0x7fffb25736e0) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007fbcbcc3059e in QCoreApplication::notifyInternal (this=0x7fffb2574350, receiver=0x24f1520, event=0x7fffb25736e0) at kernel/qcoreapplication.cpp:915
#23 0x00007fbcbd88dcd3 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QApplicationPrivate::sendMouseEvent (receiver=0x24f1520, event=0x7fffb25736e0, alienWidget=0x24f1520, nativeWidget=0x24fd8b0, buttonDown=0x7fbcbe369308 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#25 0x00007fbcbd90b41c in QETWidget::translateMouseEvent (this=this@entry=0x24fd8b0, event=event@entry=0x7fffb2573e60) at kernel/qapplication_x11.cpp:4556
#26 0x00007fbcbd90a44f in QApplication::x11ProcessEvent (this=0x7fffb2574350, event=0x7fffb2573e60) at kernel/qapplication_x11.cpp:3737
#27 0x00007fbcbd931fa2 in x11EventSourceDispatch (s=0x16b6410, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#28 0x00007fbcb5cc0ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fbcb5cc0de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fbcb5cc0ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fbcbcc5ec26 in QEventDispatcherGlib::processEvents (this=0x15f0ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#32 0x00007fbcbd931c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007fbcbcc2f2ef in QEventLoop::processEvents (this=this@entry=0x7fffb2574230, flags=...) at kernel/qeventloop.cpp:149
#34 0x00007fbcbcc2f578 in QEventLoop::exec (this=0x7fffb2574230, flags=...) at kernel/qeventloop.cpp:204
#35 0x00007fbcbcc34738 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#36 0x000000000040a9ee in main (argc=5, argv=0x7fffb2574498) at ../../../systemsettings/app/main.cpp:49

Reported using DrKonqi