Application: systemsettings (1.0)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-32-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:sound did not work, started system settings -> hardware -> Multimedia -> Phonon, settings to default, then testing left, and later right speaker, each time followed by a crash

-- 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 0x7f2be568f780 (LWP 2916))]

Thread 3 (Thread 0x7f2bc77d6700 (LWP 2918)):
#0  QTimerInfoList::timerWait (this=0x7f2bc0002860, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#1  0x00007f2be32a097c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f2bc77d5c6c) at kernel/qeventdispatcher_glib.cpp:136
#2  0x00007f2be32a0a25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#3  0x00007f2be0302846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2be0302f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f2be0303164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f2be32a1426 in QEventDispatcherGlib::processEvents (this=0x7f2bc00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007f2be3270c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f2be3270ed7 in QEventLoop::exec (this=0x7f2bc77d5dd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f2be316ffa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007f2be32509ff in QInotifyFileSystemWatcherEngine::run (this=0x1226250) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007f2be3172fcb in QThreadPrivate::start (arg=0x1226250) at thread/qthread_unix.cpp:298
#12 0x00007f2be07cfe9a in start_thread (arg=0x7f2bc77d6700) at pthread_create.c:308
#13 0x00007f2be2b2bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f2bbb0ef700 (LWP 2924)):
#0  0x00007f2bcb7c332a in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#1  0x00007f2bcb7b476c in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f2bcb7b4dd9 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f2bcb7b4e90 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f2bcb7c330f in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f2bcaf2cd18 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#6  0x00007f2be07cfe9a in start_thread (arg=0x7f2bbb0ef700) at pthread_create.c:308
#7  0x00007f2be2b2bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f2be568f780 (LWP 2916)):
[KCrash Handler]
#6  0x00007f2be2a6e425 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f2be2a71b8b in __GI_abort () at abort.c:91
#8  0x00007f2be2a670ee in __assert_fail_base (fmt=<optimized out>, assertion=0x7f2be1ed9b78 "!xcb_xlib_threads_sequence_lost", file=0x7f2be1ed9e32 "../../src/xcb_io.c", line=<optimized out>, function=<optimized out>) at assert.c:94
#9  0x00007f2be2a67192 in __GI___assert_fail (assertion=0x7f2be1ed9b78 "!xcb_xlib_threads_sequence_lost", file=0x7f2be1ed9e32 "../../src/xcb_io.c", line=273, function=0x7f2be1ed9f58 "poll_for_event") at assert.c:103
#10 0x00007f2be1e67683 in poll_for_event (dpy=<optimized out>) at ../../src/xcb_io.c:270
#11 0x00007f2be1e676a1 in poll_for_response (dpy=0xb5c1a0) at ../../src/xcb_io.c:288
#12 0x00007f2be1e67dfd in _XEventsQueued (dpy=0xb5c1a0, mode=<optimized out>) at ../../src/xcb_io.c:362
#13 0x00007f2be1e5942f in XEventsQueued (dpy=0xb5c1a0, mode=2) at ../../src/Pending.c:43
#14 0x00007f2be3f90bf7 in x11EventSourcePrepare (s=0xb3ae00, timeout=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:77
#15 0x00007f2be0302846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f2be0302f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f2be0303164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f2be32a13bf in QEventDispatcherGlib::processEvents (this=0xb094b0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#19 0x00007f2be3f90d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#20 0x00007f2be3270c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#21 0x00007f2be3270ed7 in QEventLoop::exec (this=0x7fffd30f18f0, flags=...) at kernel/qeventloop.cpp:204
#22 0x00007f2be3275f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#23 0x000000000040a7e5 in main (argc=5, argv=0x7fffd30f1c28) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 303176, bug 301141, bug 294897, bug 289949, bug 289248.

Reported using DrKonqi