Application: systemsettings (1.0)
KDE Platform Version: 4.8.5 (4.8.5) "release 2"
Qt Version: 4.8.1
Operating System: Linux 3.4.6-2.10-desktop x86_64
Distribution: "openSUSE 12.2 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
System Settings --> Display and Monitor --> Screensaver: immedate crash of System Settings KDE 4.8.5

The crash can be reproduced every time.

-- Backtrace:
Application: Systemeinstellungen (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  xcb_glx_query_server_string_string_length (R=R@entry=0x0) at glx.c:2445
#7  0x00007f05989ac204 in __glXQueryServerString (dpy=dpy@entry=0xe7b430, opcode=<optimized out>, screen=screen@entry=0, name=name@entry=2) at glx_query.c:58
#8  0x00007f059898de42 in AllocAndFetchScreenConfigs (priv=0x1770a30, dpy=0xe7b430) at glxext.c:773
#9  __glXInitialize (dpy=0xe7b430) at glxext.c:888
#10 __glXInitialize (dpy=dpy@entry=0xe7b430) at glxext.c:806
#11 0x00007f059898a5c9 in GetGLXPrivScreenConfig (dpy=dpy@entry=0xe7b430, scrn=scrn@entry=0, ppriv=ppriv@entry=0x7fff8e351e40, ppsc=ppsc@entry=0x7fff8e351e48) at glxcmds.c:176
#12 0x00007f059898ad6b in GetGLXPrivScreenConfig (ppsc=0x7fff8e351e48, ppriv=0x7fff8e351e40, scrn=<optimized out>, dpy=0xe7b430) at glxcmds.c:172
#13 glXChooseVisual (dpy=0xe7b430, screen=0, attribList=0x7f0598e40720 <KSWidget::KSWidget(QWidget*, QFlags<Qt::WindowType>)::attribs>) at glxcmds.c:1234
#14 0x00007f0598e3f31f in KSWidget::KSWidget (this=0x17710a0, parent=<optimized out>, wf=...) at /usr/src/debug/kde-workspace-4.8.5/kcontrol/screensaver/kswidget.cpp:74
#15 0x00007f0598e3940e in KSSMonitor (parent=<optimized out>, this=0x17710a0) at /usr/src/debug/kde-workspace-4.8.5/kcontrol/screensaver/kssmonitor.h:34
#16 slotPreviewExited (this=0x1587f60) at /usr/src/debug/kde-workspace-4.8.5/kcontrol/screensaver/scrnsave.cpp:513
#17 KScreenSaver::slotPreviewExited (this=0x1587f60) at /usr/src/debug/kde-workspace-4.8.5/kcontrol/screensaver/scrnsave.cpp:499
#18 0x00007f0598e3afbf in KScreenSaver::findSavers (this=0x1587f60) at /usr/src/debug/kde-workspace-4.8.5/kcontrol/screensaver/scrnsave.cpp:472
#19 0x00007f05aafe1f5f in QMetaObject::activate (sender=0x1589290, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3556
#20 0x00007f05aafdfedc in QObject::event (this=0x1589290, e=<optimized out>) at kernel/qobject.cpp:1166
#21 0x00007f05abc4774c in QApplicationPrivate::notify_helper (this=this@entry=0xe80590, receiver=receiver@entry=0x1589290, e=e@entry=0x7fff8e352bc0) at kernel/qapplication.cpp:4554
#22 0x00007f05abc4bc7a in QApplication::notify (this=0x7fff8e352f50, receiver=0x1589290, e=0x7fff8e352bc0) at kernel/qapplication.cpp:4415
#23 0x00007f05ac95b006 in KApplication::notify (this=0x7fff8e352f50, receiver=0x1589290, event=0x7fff8e352bc0) at /usr/src/debug/kdelibs-4.8.5/kdeui/kernel/kapplication.cpp:311
#24 0x00007f05aafcb73e in QCoreApplication::notifyInternal (this=0x7fff8e352f50, receiver=0x1589290, event=0x7fff8e352bc0) at kernel/qcoreapplication.cpp:876
#25 0x00007f05aaffc1c1 in sendEvent (event=0x7fff8e352bc0, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#26 QTimerInfoList::activateTimers (this=0xe77e60) at kernel/qeventdispatcher_unix.cpp:626
#27 0x00007f05aaff92d4 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#28 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#29 0x00007f05a7ea23b5 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#30 0x00007f05a7ea26e8 in ?? () from /usr/lib64/libglib-2.0.so.0
#31 0x00007f05a7ea27a4 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#32 0x00007f05aaff9936 in QEventDispatcherGlib::processEvents (this=0xe749c0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#33 0x00007f05abce78ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#34 0x00007f05aafca73f in QEventLoop::processEvents (this=this@entry=0x7fff8e352e30, flags=...) at kernel/qeventloop.cpp:149
#35 0x00007f05aafca9c8 in QEventLoop::exec (this=0x7fff8e352e30, flags=...) at kernel/qeventloop.cpp:204
#36 0x00007f05aafcf3a8 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#37 0x000000000040b1ee in main (argc=5, argv=0x7fff8e353098) at /usr/src/debug/kde-workspace-4.8.5/systemsettings/app/main.cpp:49

Reported using DrKonqi