Application: kwin (4.8.4 (4.8.4)) KDE Platform Version: 4.8.4 (4.8.4) Qt Version: 4.8.1 Operating System: Linux 3.2.0-27-generic x86_64 Distribution: Ubuntu 12.04 LTS -- Information about the crash: - What I was doing when the application crashed: kwin crashes if opengl is choosed as renderer in system settings. The crash can be reproduced every time. -- 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 0x7fd940949780 (LWP 4877))] Thread 2 (Thread 0x7fd91f2ff700 (LWP 4880)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162 #1 0x00007fd93cc17222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4 #2 0x00007fd93cc17259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4 #3 0x00007fd934a4de9a in start_thread (arg=0x7fd91f2ff700) at pthread_create.c:308 #4 0x00007fd9401614bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #5 0x0000000000000000 in ?? () Thread 1 (Thread 0x7fd940949780 (LWP 4877)): [KCrash Handler] #6 __memcpy_sse2 () at ../sysdeps/x86_64/multiarch/../memcpy.S:400 #7 0x00007fd93c404846 in __indirect_glProgramParameters4fvNV (target=1, index=20019892, num=1078089592, params=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:52 #8 0x00007fd91e16620f in KWin::ARBBlurShader::init (this=0x1317aa0) at ../../../kwin/effects/blur/blurshader.cpp:471 #9 0x00007fd91e161799 in KWin::BlurEffect::reconfigure (this=0x1347ef0, flags=...) at ../../../kwin/effects/blur/blur.cpp:85 #10 0x00007fd91e161a77 in KWin::BlurEffect::BlurEffect (this=0x1347ef0) at ../../../kwin/effects/blur/blur.cpp:53 #11 0x00007fd91e161b76 in KWin::effect_create_kwin4_effect_blur () at ../../../kwin/effects/blur/blur.cpp:34 #12 0x00007fd9405005a4 in KWin::EffectsHandlerImpl::loadEffect (this=0x1292b90, name=..., checkDefault=false) at ../../kwin/effects.cpp:1199 #13 0x00007fd94050190a in KWin::EffectsHandlerImpl::reconfigure (this=0x1292b90) at ../../kwin/effects.cpp:196 #14 0x00007fd940501e28 in KWin::EffectsHandlerImpl::EffectsHandlerImpl (this=0x1292b90, type=<optimized out>) at ../../kwin/effects.cpp:128 #15 0x00007fd9404d614f in KWin::Workspace::setupCompositing (this=0xe16dd0) at ../../kwin/composite.cpp:174 #16 0x00007fd9404d6aa5 in KWin::Workspace::setupCompositing (this=<optimized out>) at ../../kwin/composite.cpp:87 #17 0x00007fd940469abd in KWin::Workspace::slotReinitCompositing (this=0xe16dd0) at ../../kwin/workspace.cpp:1076 #18 0x00007fd9404707ea in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./workspace.moc:347 #19 KWin::Workspace::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./workspace.moc:265 #20 0x00007fd940470b4b in KWin::Workspace::qt_metacall (this=0xe16dd0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff42c15550) at ./workspace.moc:436 #21 0x00007fd93bca137b in ?? () from /usr/lib/x86_64-linux-gnu/libQtDBus.so.4 #22 0x00007fd93b940446 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #23 0x00007fd93aca9894 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #24 0x00007fd93acae713 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #25 0x00007fd93fc3b9e6 in KApplication::notify (this=0x7fff42c16040, receiver=0xe16dd0, event=0x1056d10) at ../../kdeui/kernel/kapplication.cpp:311 #26 0x00007fd93b926e9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #27 0x00007fd93b92ac6a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #28 0x00007fd93ad529fa in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4 #29 0x00007fd93b925c82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #30 0x00007fd93b925ed7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #31 0x00007fd93b92af67 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4 #32 0x00007fd94048cc36 in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../kwin/main.cpp:541 #33 0x00007fd94009076d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff42c16768, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff42c16758) at libc-start.c:226 #34 0x0000000000400671 in _start () Possible duplicates by query: bug 290390, bug 286479, bug 284375. Reported using DrKonqi
Please provide hardware/driver for bug statistics. Thanks -> If you use an AMD/ATi chip and fglrx (catalyst)? - try the radeon driver (xf86-video-ati/ati-dri) - try fglrx with enforced direct rendering (late versions have been reported to be reliable) "KWIN_DIRECT_GL=1 kwin --replace &" - remain staying away from the ARB shader using code (disable blur effect and set the scale method to smooth and esp. NOT accurate) - ensure that this issue in fglrx is not caused by it's setup demands (afaik one has to run some script after un/installing it) *** This bug has been marked as a duplicate of bug 270818 ***