Application: kwin (4.8.5 (4.8.5))
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:This has been weird. I turned on my laptop, and start process stoped at "checking system V" or something similar. Shuted it down from its shutdown button. Turned it on again, with the same results. I was able to access terminal 1 through Crtl+Alt+1, and started X Server with startx. KDE started 0K, but there were 2 Dr Konqi windows saying that KWin had crased.
I apology if this bug is NVidia's fault and this bug is already closed, but I can't even be sure about it. 

Card = NVidia 8200GM, driver version = 295.40. 
Xorg version 1.11.3

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff505c817c0 (LWP 2217))]

Thread 3 (Thread 0x7ff4e282a700 (LWP 2222)):
#0  0x00007fffeef038de in ?? ()
#1  0x00007ff4fa71615d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007ff500b02bb4 in do_gettime (frac=0x7ff4e2829a58, sec=0x7ff4e2829a50) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007ff500bdab8d in QTimerInfoList::updateCurrentTime (this=0x7ff4d4001198) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007ff500bdc476 in QEventDispatcherUNIXPrivate::doSelect (this=0x7ff4d4000930, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:186
#6  0x00007ff500bdcca3 in QEventDispatcherUNIX::processEvents (this=0x7ff4d4000910, flags=...) at kernel/qeventdispatcher_unix.cpp:926
#7  0x00007ff500ba9c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007ff500ba9ed7 in QEventLoop::exec (this=0x7ff4e2829cd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007ff500aa8fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007ff500b899ff in QInotifyFileSystemWatcherEngine::run (this=0x12fefd0) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007ff500aabfcb in QThreadPrivate::start (arg=0x12fefd0) at thread/qthread_unix.cpp:298
#12 0x00007ff5016fdb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#13 0x00007ff4f9cd2e9a in start_thread (arg=0x7ff4e282a700) at pthread_create.c:308
#14 0x00007ff50549ddbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ff4e18b8700 (LWP 2223)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff501f52222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007ff501f52259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007ff5016fdb74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007ff4f9cd2e9a in start_thread (arg=0x7ff4e18b8700) at pthread_create.c:308
#5  0x00007ff50549ddbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff505c817c0 (LWP 2217)):
[KCrash Handler]
#6  0x00007ff4f8b04e81 in ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.295.40
#7  0x00007ff4f8b065c4 in ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.295.40
#8  0x00007ff4f8c1b2f8 in ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.295.40
#9  0x00007ff4f87aeaf4 in ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.295.40
#10 0x00007ff4f87af02c in ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.295.40
#11 0x00007ff501977c54 in KWin::GLShader::setUniform (this=<optimized out>, location=5, value=<optimized out>) at ../../../kwin/libkwineffects/kwinglutils.cpp:517
#12 0x00007ff505829545 in KWin::SceneOpenGL::Window::restoreShaderRenderStates (this=<optimized out>, type=KWin::SceneOpenGL::Window::Content, opacity=<optimized out>, brightness=<optimized out>, saturation=<optimized out>, shader=<optimized out>) at ../../kwin/scene_opengl.cpp:1044
#13 0x00007ff50582fe10 in KWin::SceneOpenGL::Window::performPaint (this=0x1462700, mask=1, region=..., data=...) at ../../kwin/scene_opengl.cpp:593
#14 0x00007ff505818569 in KWin::Scene::finalDrawWindow (this=<optimized out>, w=<optimized out>, mask=1, region=..., data=...) at ../../kwin/scene.cpp:438
#15 0x00007ff50583af95 in KWin::EffectsHandlerImpl::drawWindow (this=0x1180760, w=0x1461c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:286
#16 0x00007ff4e3325137 in KWin::BlurEffect::drawWindow (this=<optimized out>, w=0x1461c40, mask=1, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:389
#17 0x00007ff50583af29 in KWin::EffectsHandlerImpl::drawWindow (this=0x1180760, w=0x1461c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:283
#18 0x00007ff505817ae5 in KWin::Scene::finalPaintWindow (this=<optimized out>, w=0x1461c30, mask=1, region=..., data=...) at ../../kwin/scene.cpp:429
#19 0x00007ff50583b225 in KWin::EffectsHandlerImpl::paintWindow (this=0x1180760, w=0x1461c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:249
#20 0x00007ff50360149b in KWin::Effect::paintWindow (this=<optimized out>, w=0x1461c40, mask=1, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:157
#21 0x00007ff50583b1b9 in KWin::EffectsHandlerImpl::paintWindow (this=0x1180760, w=0x1461c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:246
#22 0x00007ff505818768 in KWin::Scene::paintWindow (this=<optimized out>, w=0x1462700, mask=1, region=..., quads=...) at ../../kwin/scene.cpp:385
#23 0x00007ff50581930d in KWin::Scene::paintSimpleScreen (this=0xf93e00, orig_mask=0, region=<error reading variable: Cannot access memory at address 0xffffffffffffffff>) at ../../kwin/scene.cpp:330
#24 0x00007ff505817a14 in KWin::Scene::finalPaintScreen (this=0xf93e00, mask=0, region=..., data=...) at ../../kwin/scene.cpp:198
#25 0x00007ff50583b3f7 in KWin::EffectsHandlerImpl::paintScreen (this=0x1180760, mask=0, region=..., data=...) at ../../kwin/effects.cpp:222
#26 0x00007ff503601508 in KWin::Effect::paintScreen (this=<optimized out>, mask=0, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#27 0x00007ff50583b39b in KWin::EffectsHandlerImpl::paintScreen (this=0x1180760, mask=0, region=..., data=...) at ../../kwin/effects.cpp:219
#28 0x00007ff50581aa25 in KWin::Scene::paintScreen (this=0xf93e00, mask=0x7fffeee296b8, region=0x7fffeee29780) at ../../kwin/scene.cpp:156
#29 0x00007ff5058308ed in KWin::SceneOpenGL::paint (this=0xf93e00, damage=..., toplevels=...) at ../../kwin/scene_opengl_glx.cpp:459
#30 0x00007ff50581455c in KWin::Workspace::performCompositing (this=0xdb8740) at ../../kwin/composite.cpp:412
#31 0x00007ff500bc4179 in QObject::event (this=0xdb8740, e=<optimized out>) at kernel/qobject.cpp:1157
#32 0x00007ff4fff2d894 in notify_helper (e=0x7fffeee29e80, receiver=0xdb8740, this=0xbcaa00) at kernel/qapplication.cpp:4559
#33 QApplicationPrivate::notify_helper (this=0xbcaa00, receiver=0xdb8740, e=0x7fffeee29e80) at kernel/qapplication.cpp:4531
#34 0x00007ff4fff32713 in QApplication::notify (this=0x7fffeee2a2a0, receiver=0xdb8740, e=0x7fffeee29e80) at kernel/qapplication.cpp:4420
#35 0x00007ff504f773f6 in KApplication::notify (this=0x7fffeee2a2a0, receiver=0xdb8740, event=0x7fffeee29e80) at ../../kdeui/kernel/kapplication.cpp:311
#36 0x00007ff500baae9c in QCoreApplication::notifyInternal (this=0x7fffeee2a2a0, receiver=0xdb8740, event=0x7fffeee29e80) at kernel/qcoreapplication.cpp:876
#37 0x00007ff500bdc1f2 in sendEvent (event=0x7fffeee29e80, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#38 QTimerInfoList::activateTimers (this=0xbcb628) at kernel/qeventdispatcher_unix.cpp:611
#39 0x00007ff500bdccb4 in QEventDispatcherUNIX::processEvents (this=0xb17ad0, flags=...) at kernel/qeventdispatcher_unix.cpp:930
#40 0x00007ff4fffd6bf8 in QEventDispatcherX11::processEvents (this=0xb17ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#41 0x00007ff500ba9c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007ff500ba9ed7 in QEventLoop::exec (this=0x7fffeee2a1e0, flags=...) at kernel/qeventloop.cpp:204
#43 0x00007ff500baef67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#44 0x00007ff5057c9c36 in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../kwin/main.cpp:541
#45 0x00007ff5053cb76d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=3, ubp_av=0x7fffeee2a9c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffeee2a9b8) at libc-start.c:226
#46 0x0000000000400661 in _start ()

This bug may be a duplicate of or related to bug 284332.

Possible duplicates by query: bug 306598, bug 306559, bug 302078, bug 298965, bug 297968.

Reported using DrKonqi