Application: kwin (4.7.00 (4.7.0))
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
Al passaggio video a schermo intero  va a scatti per un pò,  si pianta e non va più nessun comando tranne ctrl f10 che lo fa tornare a dimensioni normali, ho provato a installare varie volte sia i driver scheda video che il flash player,  con nessun miglioramento anzi direi proprio quasi un peggiormaneto della situazione.
Un grazie

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd4d5a487a0 (LWP 4789))]

Thread 3 (Thread 0x7fd4bc8fe700 (LWP 4795)):
#0  0x00007fd4d5290143 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fd4d16ef32c in qt_safe_select (nfds=17, fdread=0x206bfd0, fdwrite=0x206c268, fdexcept=0x206c500, orig_timeout=<value optimized out>) at kernel/qcore_unix.cpp:82
#2  0x00007fd4d16f43d0 in QEventDispatcherUNIXPrivate::doSelect (this=0x206be10, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00007fd4d16f504a in QEventDispatcherUNIX::processEvents (this=0x259ccf0, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#4  0x00007fd4d16c6882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd4d16c6abc in QEventLoop::exec (this=0x7fd4bc8fddb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fd4d15dd924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fd4d16a8c2f in QInotifyFileSystemWatcherEngine::run (this=0x2090300) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fd4d15e0175 in QThreadPrivate::start (arg=0x2090300) at thread/qthread_unix.cpp:320
#9  0x00007fd4cbce0d8c in start_thread (arg=0x7fd4bc8fe700) at pthread_create.c:304
#10 0x00007fd4d529804d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd4b7fff700 (LWP 4796)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd4d40f82a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fd4d4411180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fd4d40f82d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fd4d441f254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fd4cbce0d8c in start_thread (arg=0x7fd4b7fff700) at pthread_create.c:304
#4  0x00007fd4d529804d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd4d5a487a0 (LWP 4789)):
[KCrash Handler]
#6  KWin::CloseWindowView::hide (this=0x0) at ../../../kwin/effects/presentwindows/presentwindows.cpp:2046
#7  0x00007fd4be3a2b4c in KWin::PresentWindowsEffect::setHighlightedWindow (this=0x2311a10, w=0x208b920) at ../../../kwin/effects/presentwindows/presentwindows.cpp:1754
#8  0x00007fd4be3ac4e0 in KWin::PresentWindowsEffect::slotWindowClosed (this=0x2311a10, w=0x22b8340) at ../../../kwin/effects/presentwindows/presentwindows.cpp:426
#9  0x00007fd4be3ac6bc in KWin::PresentWindowsEffect::qt_metacall (this=0x2311a10, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb15d8a70) at ./presentwindows.moc:178
#10 0x00007fd4d16dc5f8 in QMetaObject::activate (sender=0x22c0da0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffb15d8a70) at kernel/qobject.cpp:3287
#11 0x00007fd4d36e7472 in KWin::EffectsHandler::windowClosed (this=<value optimized out>, _t1=0x22b8340) at ./kwineffects.moc:231
#12 0x00007fd4d557913e in KWin::EffectsHandlerImpl::qt_metacall (this=0x22c0da0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb15d8b80) at moc_effects.cpp:128
#13 0x00007fd4d16dc5f8 in QMetaObject::activate (sender=0x2555dd0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffb15d8b80) at kernel/qobject.cpp:3287
#14 0x00007fd4d558e592 in KWin::Client::clientClosed (this=<value optimized out>, _t1=0x2555dd0) at ./client.moc:202
#15 0x00007fd4d559347a in KWin::Client::releaseWindow (this=0x2555dd0, on_shutdown=false) at ../../kwin/client.cpp:246
#16 0x00007fd4d55c1a39 in KWin::Client::windowEvent (this=0x2555dd0, e=0x7fffb15d9400) at ../../kwin/events.cpp:594
#17 0x00007fd4d55c1cf9 in KWin::Workspace::workspaceEvent (this=0x7fd4b8064630, e=0x7fffb15d9400) at ../../kwin/events.cpp:290
#18 0x00007fd4d559e448 in KWin::Application::x11EventFilter (this=0x7fffb15d9640, e=0x7fffb15d9400) at ../../kwin/main.cpp:356
#19 0x00007fd4d0af38f5 in qt_x11EventFilter (ev=0x7fffb15d9400) at kernel/qapplication_x11.cpp:440
#20 0x00007fd4d0b050a0 in QApplication::x11ProcessEvent (this=0x7fffb15d9640, event=0x7fffb15d9400) at kernel/qapplication_x11.cpp:3392
#21 0x00007fd4d0b2f224 in QEventDispatcherX11::processEvents (this=0x1f9f2e0, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#22 0x00007fd4d16c6882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007fd4d16c6abc in QEventLoop::exec (this=0x7fffb15d9580, flags=...) at kernel/qeventloop.cpp:201
#24 0x00007fd4d16caecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#25 0x00007fd4d55a0bfe in kdemain (argc=<value optimized out>, argv=0x7fffb15d9ca8) at ../../kwin/main.cpp:514
#26 0x00007fd4d51d0eff in __libc_start_main (main=0x400730 <main(int, char**)>, argc=3, ubp_av=0x7fffb15d9ca8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffb15d9c98) at libc-start.c:226
#27 0x0000000000400659 in _start ()

Reported using DrKonqi