Application: kwin (4.5.00 (KDE 4.5.0))
KDE Platform Version: 4.5.00 (KDE 4.5.0)
Qt Version: 4.6.3
Operating System: Linux 2.6.34-12-default x86_64
Distribution: "openSUSE 11.3 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
"Allows the manipulation of widget behavior and changing the Style for KDE" 
kwin crashed when I c hanged style settings from what was ,I think, the default setting to any other setting.  This is a new install (opensuse 11.3) whit KDE updated to 4.5.0-493.4. The crash windows pops up, but the requested action appears to work anyway. It did the same thing when I checked the KDE help ikon, to find out the kde-version.  At this moment I am using an ati card HD4670 2d driver radeon, 3d driver R600 classic(7.8.2) I did not install ati restricted driver yet. I have less problems like the, when using a NVIDIA 9500, but have bitch of a time to get NVIDIA's proprietary driver to install. It always tells me that I have the nouveaux driver installed ,but I locked that one out
Harry Bottinga

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[KCrash Handler]
#6  dri2DrawableGetMSC (psc=0x6ce3a0, pdraw=0x0, ust=0x7fff1de70728, msc=0x7fff1de70720, sbc=0x7fff1de70718) at dri2_glx.c:226
#7  0x00007fd6278ee185 in __glXGetVideoSyncSGI (count=0x7fff1de7076c) at glxcmds.c:2317
#8  0x00007fd629e41c21 in KWin::SceneOpenGL::waitSync (this=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/scene_opengl.cpp:781
#9  0x00007fd629e555b5 in KWin::SceneOpenGL::flushBuffer (this=0xacd640, mask=<value optimized out>, damage=...) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/scene_opengl.cpp:793
#10 0x00007fd629e9f530 in KWin::SceneOpenGL::paint (this=0xacd640, damage=..., toplevels=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/scene_opengl.cpp:761
#11 0x00007fd629e803f9 in KWin::Workspace::performCompositing (this=0x6ceab0) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/composite.cpp:454
#12 0x00007fd629eadc15 in KWin::Workspace::qt_metacall (this=0x6ceab0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff1de70bb0)
    at /usr/src/debug/kdebase-workspace-4.5.0/build/kwin/workspace.moc:583
#13 0x00007fd62649da1f in QMetaObject::activate (sender=0x6cef78, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3295
#14 0x00007fd62649b22e in QObject::event (this=0x6cef78, e=0x7fff1de71350) at kernel/qobject.cpp:1212
#15 0x00007fd62565e4d4 in QApplicationPrivate::notify_helper (this=0x633050, receiver=0x6cef78, e=0x7fff1de71350) at kernel/qapplication.cpp:4302
#16 0x00007fd625666aca in QApplication::notify (this=<value optimized out>, receiver=0x6cef78, e=0x7fff1de71350) at kernel/qapplication.cpp:4185
#17 0x00007fd6295f20b6 in KApplication::notify (this=0x7fff1de71860, receiver=0x6cef78, event=0x7fff1de71350) at /usr/src/debug/kdelibs-4.5.0/kdeui/kernel/kapplication.cpp:310
#18 0x00007fd626489e4c in QCoreApplication::notifyInternal (this=0x7fff1de71860, receiver=0x6cef78, event=0x7fff1de71350) at kernel/qcoreapplication.cpp:726
#19 0x00007fd6264b50c9 in sendEvent (this=0x633a40) at kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x633a40) at kernel/qeventdispatcher_unix.cpp:618
#21 0x00007fd6264b58c0 in QEventDispatcherUNIX::processEvents (this=0x612010, flags=...) at kernel/qeventdispatcher_unix.cpp:939
#22 0x00007fd6256ffcbc in QEventDispatcherX11::processEvents (this=0x612010, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#23 0x00007fd626489292 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007fd626489495 in QEventLoop::exec (this=0x7fff1de717a0, flags=...) at kernel/qeventloop.cpp:201
#25 0x00007fd62648d88b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#26 0x00007fd629eac314 in kdemain (argc=<value optimized out>, argv=0x7fff1de71860) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/main.cpp:531
#27 0x00007fd629aa3b7d in __libc_start_main () from /lib64/libc.so.6
#28 0x0000000000400699 in _start () at ../sysdeps/x86_64/elf/start.S:113

Possible duplicates by query: bug 247408, bug 245238, bug 241325, bug 241263.

Reported using DrKonqi