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 3.2.0-40-generic-pae i686
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
- Custom settings of the application:

kwin ce plante quand j'essaye de changer xrender par opengl et je n'est aucun effets de bureau (cube du bureau,sphere du bureau,fondu,fenètres enperspectives,fenetres molles ect...) pourtant quand je lance la commande glxinfo | grep "directe rendering" le résultat est dirrecte rendring: yes .

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb174a740 (LWP 1769))]

Thread 5 (Thread 0xaf6b0b40 (LWP 1770)):
#0  0xb770f424 in __kernel_vsyscall ()
#1  0xb74d648b in read () from /lib/i386-linux-gnu/libc.so.6
#2  0xb25896ce in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb254ab92 in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb254b002 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb254b52b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xaf6ee134 in ?? () from /usr/lib/i386-linux-gnu/gio/modules/libdconfsettings.so
#7  0xb256e673 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb26a0d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#9  0xb74e6dde in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xaecffb40 (LWP 1771)):
#0  0xb770f424 in __kernel_vsyscall ()
#1  0xb74d8690 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2558a3b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb254b06e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb254b52b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xaf93e4aa in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb256e673 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb26a0d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb74e6dde in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xab583b40 (LWP 1776)):
#0  0xb26e9dcd in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb5b1d315 in do_gettime (frac=0xab5830c0, sec=0xab5830b8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb5c07226 in QTimerInfoList::updateCurrentTime (this=0xaac00b34) at kernel/qeventdispatcher_unix.cpp:343
#4  0xb5c0757a in QTimerInfoList::timerWait (this=0xaac00b34, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#5  0xb5c0927e in QEventDispatcherUNIX::processEvents (this=0xaac00488, flags=...) at kernel/qeventdispatcher_unix.cpp:913
#6  0xb5bd250d in QEventLoop::processEvents (this=0xab583240, flags=...) at kernel/qeventloop.cpp:149
#7  0xb5bd27a9 in QEventLoop::exec (this=0xab583240, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5abb94c in QThread::exec (this=0x9212ff8) at thread/qthread.cpp:501
#9  0xb5bafb5d in QInotifyFileSystemWatcherEngine::run (this=0x9212ff8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb5abede0 in QThreadPrivate::start (arg=0x9212ff8) at thread/qthread_unix.cpp:298
#11 0xb26a0d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb74e6dde in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xaabffb40 (LWP 1777)):
#0  0xb770f424 in __kernel_vsyscall ()
#1  0xb26a496b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb74f46ec in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb65ff029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb65ff06f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb26a0d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb74e6dde in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb174a740 (LWP 1769)):
[KCrash Handler]
#7  _mesa_base_fbo_format (ctx=0x0, internalFormat=36763) at main/fbobject.c:1186
#8  0xb61c2b82 in soft_renderbuffer_storage (ctx=0x0, rb=0x939dcb8, internalFormat=36763, width=861, height=597) at swrast/s_renderbuffer.c:145
#9  0xb6106568 in _mesa_resize_framebuffer (ctx=0x0, fb=0x9e9cc008, width=861, height=597) at main/framebuffer.c:293
#10 0xb60b2327 in XMesaCreatePixmapTextureBuffer (v=0x96d54a8, p=39865509, cmap=0, format=8409, target=8412, mipmap=1) at xm_api.c:1086
#11 0xb60acf26 in Fake_glXCreatePixmap (attribList=<optimized out>, pixmap=<optimized out>, config=<optimized out>, dpy=<optimized out>) at fakeglx.c:2162
#12 Fake_glXCreatePixmap (dpy=0x9064be0, config=0x96d54a8, pixmap=39865509, attribList=0xbf9b9860) at fakeglx.c:2066
#13 0xb60af667 in glXCreatePixmap (dpy=0x9064be0, config=0x96d54a8, pixmap=39865509, attribList=0xbf9b9860) at glxapi.c:478
#14 0xb767356e in KWin::SceneOpenGL::Texture::load (this=0x933d1a8, pix=@0xbf9b9934: 39865509, size=..., depth=24, region=...) at ../../kwin/scene_opengl_glx.cpp:668
#15 0xb76750c5 in KWin::SceneOpenGL::Window::bindTexture (this=0x933d188) at ../../kwin/scene_opengl.cpp:377
#16 0xb767c2a1 in KWin::SceneOpenGL::Window::performPaint (this=0x933d188, mask=1, region=..., data=...) at ../../kwin/scene_opengl.cpp:486
#17 0xb7663517 in KWin::Scene::finalDrawWindow (this=0x928a4b0, w=0x990a1b0, mask=1, region=..., data=...) at ../../kwin/scene.cpp:438
#18 0xb768a6aa in KWin::EffectsHandlerImpl::drawWindow (this=0x9641fe8, w=0x990a1b8, mask=1, region=..., data=...) at ../../kwin/effects.cpp:286
#19 0xb68a53a2 in KWin::Effect::drawWindow (this=0x9894800, w=0x990a1b8, mask=1, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:182
#20 0xb768a648 in KWin::EffectsHandlerImpl::drawWindow (this=0x9641fe8, w=0x990a1b8, mask=1, region=..., data=...) at ../../kwin/effects.cpp:283
#21 0xb7662952 in KWin::Scene::finalPaintWindow (this=0x928a4b0, w=0x990a1b0, mask=1, region=..., data=...) at ../../kwin/scene.cpp:429
#22 0xb768a53a in KWin::EffectsHandlerImpl::paintWindow (this=0x9641fe8, w=0x990a1b8, mask=1, region=..., data=...) at ../../kwin/effects.cpp:249
#23 0xab961cd8 in KWin::TranslucencyEffect::paintWindow (this=0x9894800, w=0x990a1b8, mask=1, region=..., data=...) at ../../../kwin/effects/translucency/translucency.cpp:169
#24 0xb768a4d8 in KWin::EffectsHandlerImpl::paintWindow (this=0x9641fe8, w=0x990a1b8, mask=1, region=..., data=...) at ../../kwin/effects.cpp:246
#25 0xb766373e in KWin::Scene::paintWindow (this=0x928a4b0, w=0x933d188, mask=1, region=..., quads=...) at ../../kwin/scene.cpp:385
#26 0xb76648e5 in KWin::Scene::paintSimpleScreen (this=0x928a4b0, orig_mask=0, region=...) at ../../kwin/scene.cpp:330
#27 0xb766285a in KWin::Scene::finalPaintScreen (this=0x928a4b0, mask=0, region=..., data=...) at ../../kwin/scene.cpp:198
#28 0xb768a9c0 in KWin::EffectsHandlerImpl::paintScreen (this=0x9641fe8, mask=0, region=..., data=...) at ../../kwin/effects.cpp:222
#29 0xb68a553a in KWin::Effect::paintScreen (this=0x9894800, mask=0, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#30 0xb768a970 in KWin::EffectsHandlerImpl::paintScreen (this=0x9641fe8, mask=0, region=..., data=...) at ../../kwin/effects.cpp:219
#31 0xb76653cf in KWin::Scene::paintScreen (this=0x928a4b0, mask=0xbf9ba624, region=0xbf9ba6b8) at ../../kwin/scene.cpp:156
#32 0xb767db69 in KWin::SceneOpenGL::paint (this=0x928a4b0, damage=..., toplevels=...) at ../../kwin/scene_opengl_glx.cpp:459
#33 0xb765eaa4 in KWin::Workspace::performCompositing (this=0x9285da0) at ../../kwin/composite.cpp:417
#34 0xb5beeac4 in QObject::event (this=0x9285da0, e=0xbf9bab9c) at kernel/qobject.cpp:1157
#35 0xb50bded4 in notify_helper (e=0xbf9bab9c, receiver=0x9285da0, this=0x90555c8) at kernel/qapplication.cpp:4559
#36 QApplicationPrivate::notify_helper (this=0x90555c8, receiver=0x9285da0, e=0xbf9bab9c) at kernel/qapplication.cpp:4531
#37 0xb50c330d in QApplication::notify (this=0xbf9bab9c, receiver=0x9285da0, e=0xbf9bab9c) at kernel/qapplication.cpp:4288
#38 0xb71a0e01 in KApplication::notify (this=0xbf9baea8, receiver=0x9285da0, event=0xbf9bab9c) at ../../kdeui/kernel/kapplication.cpp:311
#39 0xb76077ff in notify (e=0xbf9bab9c, o=0x9285da0, this=0xbf9baea8) at ../../kwin/main.cpp:368
#40 KWin::Application::notify (this=0xbf9baea8, o=0x9285da0, e=0xbf9bab9c) at ../../kwin/main.cpp:364
#41 0xb5bd397e in QCoreApplication::notifyInternal (this=0xbf9baea8, receiver=0x9285da0, event=0xbf9bab9c) at kernel/qcoreapplication.cpp:876
#42 0xb5c08990 in sendEvent (event=0xbf9bab9c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#43 QTimerInfoList::activateTimers (this=0x9055e6c) at kernel/qeventdispatcher_unix.cpp:611
#44 0xb5c09207 in QEventDispatcherUNIX::processEvents (this=0x900bea0, flags=...) at kernel/qeventdispatcher_unix.cpp:930
#45 0xb5177b6e in QEventDispatcherX11::processEvents (this=0x900bea0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#46 0xb5bd250d in QEventLoop::processEvents (this=0xbf9bade4, flags=...) at kernel/qeventloop.cpp:149
#47 0xb5bd27a9 in QEventLoop::exec (this=0xbf9bade4, flags=...) at kernel/qeventloop.cpp:204
#48 0xb5bd7eba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#49 0xb50bba74 in QApplication::exec () at kernel/qapplication.cpp:3820
#50 0xb760a7c5 in kdemain (argc=1, argv=0xbf9bb154) at ../../kwin/main.cpp:541
#51 0x0804850b in main (argc=1, argv=0xbf9bb154) at kwin_dummy.cpp:3

This bug may be a duplicate of or related to bug 286866.

Possible duplicates by query: bug 291608, bug 286870, bug 286866.

Reported using DrKonqi