Application that crashed: systemsettings
Version of the application: 1.0
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.26 x86_64
Distribution: Debian GNU/Linux testing (squeeze)

What I was doing when the application crashed:
I opened System Settings and then the facility for the Desktop. In Desktop, first I deselected "Enable Desktop Effects", and then tried to activate the Screen Saver icon at the left. This crash happens at that point.

Thank you very much! :)


 -- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f0ac39a6210 in XVisualIDFromVisual () from /usr/lib/libX11.so.6
#6  0x00007f0ac5e389a4 in qt_x11_getX11InfoForWindow (xinfo=0x23a0a28, att=...) at kernel/qwidget_x11.cpp:2896
#7  0x00007f0ac5e38a30 in qt_x11_getX11InfoForWindow (xinfo=0x0, a=<value optimized out>) at kernel/qwidget_x11.cpp:400
#8  0x00007f0ac5e3d2ac in QWidgetPrivate::create_sys (this=0x23a0890, window=60822604, initializeWindow=false, destroyOldWindow=true) at kernel/qwidget_x11.cpp:545
#9  0x00007f0ac5e048fe in QWidget::create (this=0x23939d0, window=60822604, initializeWindow=80, destroyOldWindow=true) at kernel/qwidget.cpp:1253
#10 0x00007f0ab63d73fa in KSWidget (this=0x23939d0, parent=<value optimized out>, wf=<value optimized out>) at ../../../kcontrol/screensaver/kswidget.cpp:66
#11 0x00007f0ab63c9a11 in KSSMonitor (this=0x2239710) at ../../../kcontrol/screensaver/kssmonitor.h:9
#12 KScreenSaver::slotPreviewExited (this=0x2239710) at ../../../kcontrol/screensaver/scrnsave.cpp:607
#13 0x00007f0ab63cb6be in KScreenSaver::findSavers (this=0x2239710) at ../../../kcontrol/screensaver/scrnsave.cpp:575
#14 0x00007f0ab63cbe60 in KScreenSaver::qt_metacall (this=0x2239710, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffcf491770) at ./scrnsave.moc:98
#15 0x00007f0ac5202682 in QMetaObject::activate (sender=0x22ed5e0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x1) at kernel/qobject.cpp:3112
#16 0x00007f0ac51fcbf3 in QObject::event (this=0x22ed5e0, e=0x0) at kernel/qobject.cpp:1074
#17 0x00007f0ac5db280d in QApplicationPrivate::notify_helper (this=0x1b68370, receiver=0x22ed5e0, e=0x7fffcf491e20) at kernel/qapplication.cpp:4056
#18 0x00007f0ac5dba86a in QApplication::notify (this=0x7fffcf495b60, receiver=0x22ed5e0, e=0x7fffcf491e20) at kernel/qapplication.cpp:4021
#19 0x00007f0ac6a0c43b in KApplication::notify (this=0x7fffcf495b60, receiver=0x22ed5e0, event=0x7fffcf491e20) at ../../kdeui/kernel/kapplication.cpp:302
#20 0x00007f0ac51ed51c in QCoreApplication::notifyInternal (this=0x7fffcf495b60, receiver=0x22ed5e0, event=0x7fffcf491e20) at kernel/qcoreapplication.cpp:610
#21 0x00007f0ac5219826 in QCoreApplication::sendEvent (this=0x1b77d00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#22 QTimerInfoList::activateTimers (this=0x1b77d00) at kernel/qeventdispatcher_unix.cpp:572
#23 0x00007f0ac5215c9d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#24 0x00007f0ac20e312a in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#25 0x00007f0ac20e6988 in ?? () from /lib/libglib-2.0.so.0
#26 0x00007f0ac20e6b3c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#27 0x00007f0ac5215bff in QEventDispatcherGlib::processEvents (this=0x1b44490, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#28 0x00007f0ac5e4964f in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#29 0x00007f0ac51ebde2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#30 0x00007f0ac51ec1b4 in QEventLoop::exec (this=0x7fffcf4920d0, flags=...) at kernel/qeventloop.cpp:201
#31 0x00007f0ac623ca9e in QDialog::exec (this=0x226a330) at dialogs/qdialog.cpp:498
#32 0x00007f0ac6992352 in KMessageBox::createKMessageBox (dialog=0x226a330, icon=<value optimized out>, text=..., strlist=..., ask=..., checkboxReturn=0x7fffcf4928bf, options=..., details=..., 
    notifyType=QMessageBox::Warning) at ../../kdeui/dialogs/kmessagebox.cpp:331
#33 0x00007f0ac69934e7 in KMessageBox::createKMessageBox (dialog=0x226a330, icon=QMessageBox::Warning, text=..., strlist=..., ask=..., checkboxReturn=0x7fffcf4928bf, options=..., details=...)
    at ../../kdeui/dialogs/kmessagebox.cpp:151
#34 0x00007f0ac699627e in KMessageBox::warningYesNoCancelListWId (parent_id=60817433, text=..., strlist=..., caption=..., buttonYes_=<value optimized out>, buttonNo_=<value optimized out>, 
    buttonCancel_=..., dontAskAgainName=..., options=...) at ../../kdeui/dialogs/kmessagebox.cpp:794
#35 0x00007f0ac699648d in KMessageBox::warningYesNoCancelList (parent=0x0, text=..., strlist=..., caption=..., buttonYes=..., buttonNo=..., buttonCancel=..., dontAskAgainName=..., options=...)
    at ../../kdeui/dialogs/kmessagebox.cpp:751
#36 0x00007f0ac6996502 in KMessageBox::warningYesNoCancel (parent=0x0, text=..., caption=<value optimized out>, buttonYes=<value optimized out>, buttonNo=<value optimized out>, 
    buttonCancel=<value optimized out>, dontAskAgainName=..., options=...) at ../../kdeui/dialogs/kmessagebox.cpp:726
#37 0x00007f0ac6e17291 in ModuleView::resolveChanges (this=0x1d41d40, currentProxy=0x1da02b0) at ../../../systemsettings/core/ModuleView.cpp:202
#38 0x00007f0ac6e1740a in ModuleView::activeModuleChanged (this=0x1d41d40, current=0x2179e20, previous=0x1d53d40) at ../../../systemsettings/core/ModuleView.cpp:286
#39 0x00007f0ac6e17fb6 in ModuleView::qt_metacall (this=0x1d41d40, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffcf492be0) at ./ModuleView.moc:92
#40 0x00007f0ac5202682 in QMetaObject::activate (sender=0x1e09d20, from_signal_index=<value optimized out>, to_signal_index=32, argv=0x1) at kernel/qobject.cpp:3112
#41 0x00007f0ac6a3d078 in KPageWidget::currentPageChanged (this=0x0, _t1=0x2179e20, _t2=0x1d53d40) at ./kpagewidget.moc:90
#42 0x00007f0ac6a3d20b in KPageWidget::qt_metacall (this=0x1e09d20, _c=QMetaObject::InvokeMetaMethod, _id=256, _a=0x7fffcf492d10) at ./kpagewidget.moc:78
#43 0x00007f0ac5202682 in QMetaObject::activate (sender=0x1e09d20, from_signal_index=<value optimized out>, to_signal_index=27, argv=0x1) at kernel/qobject.cpp:3112
#44 0x00007f0ac6a38bd7 in KPageView::currentPageChanged (this=0x0, _t1=<value optimized out>, _t2=<value optimized out>) at ./kpageview.moc:134
#45 0x00007f0ac6a39767 in KPageViewPrivate::_k_pageSelected (this=0x1e0c5f0, index=..., previous=...) at ../../kdeui/paged/kpageview.cpp:235
#46 0x00007f0ac6a3a179 in KPageView::qt_metacall (this=0x1e09d20, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffcf492eb0) at ./kpageview.moc:94
#47 0x00007f0ac6a3d1d6 in KPageWidget::qt_metacall (this=0x0, _c=QMetaObject::InvokeMetaMethod, _id=28923472, _a=0x1) at ./kpagewidget.moc:70
#48 0x00007f0ac5202682 in QMetaObject::activate (sender=0x217a5a0, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x1) at kernel/qobject.cpp:3112
#49 0x00007f0ac62e50ca in QItemSelectionModel::currentChanged (this=0x0, _t1=<value optimized out>, _t2=<value optimized out>) at .moc/release-shared/moc_qitemselectionmodel.cpp:153
#50 0x00007f0ac62e5214 in QItemSelectionModel::setCurrentIndex (this=0x217a5a0, index=<value optimized out>, command=...) at itemviews/qitemselectionmodel.cpp:1123
#51 0x00007f0ac6299808 in QAbstractItemView::mousePressEvent (this=0x1d36250, event=0x7fffcf493dd0) at itemviews/qabstractitemview.cpp:1514
#52 0x00007f0ac5e02d26 in QWidget::event (this=0x1d36250, event=0x7fffcf493dd0) at kernel/qwidget.cpp:7545
#53 0x00007f0ac616bcdb in QFrame::event (this=0x1d36250, e=0x7fffcf493dd0) at widgets/qframe.cpp:559
#54 0x00007f0ac629e77b in QAbstractItemView::viewportEvent (this=0x1d36250, event=0x7fffcf493dd0) at itemviews/qabstractitemview.cpp:1476
#55 0x00007f0ac51ec838 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x1d97b40, event=0x7fffcf493dd0) at kernel/qcoreapplication.cpp:726
#56 0x00007f0ac5db27dc in QApplicationPrivate::notify_helper (this=0x1b68370, receiver=0x1d97b40, e=0x7fffcf493dd0) at kernel/qapplication.cpp:4052
#57 0x00007f0ac5dbafba in QApplication::notify (this=<value optimized out>, receiver=0x1d97b40, e=0x7fffcf493dd0) at kernel/qapplication.cpp:3758
#58 0x00007f0ac6a0c43b in KApplication::notify (this=0x7fffcf495b60, receiver=0x1d97b40, event=0x7fffcf493dd0) at ../../kdeui/kernel/kapplication.cpp:302
#59 0x00007f0ac51ed51c in QCoreApplication::notifyInternal (this=0x7fffcf495b60, receiver=0x1d97b40, event=0x7fffcf493dd0) at kernel/qcoreapplication.cpp:610
#60 0x00007f0ac5dba268 in QCoreApplication::sendSpontaneousEvent (receiver=0x1d97b40, event=0x7fffcf493dd0, alienWidget=0x1d97b40, nativeWidget=0x1c4af10, buttonDown=<value optimized out>, 
    lastMouseReceiver=...) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#61 QApplicationPrivate::sendMouseEvent (receiver=0x1d97b40, event=0x7fffcf493dd0, alienWidget=0x1d97b40, nativeWidget=0x1c4af10, buttonDown=<value optimized out>, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#62 0x00007f0ac5e22df9 in QETWidget::translateMouseEvent (this=0x1c4af10, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#63 0x00007f0ac5e21baf in QApplication::x11ProcessEvent (this=0x7fffcf495b60, event=0x7fffcf4957a0) at kernel/qapplication_x11.cpp:3550
#64 0x00007f0ac5e49e9c in x11EventSourceDispatch (s=0x1b77d60, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#65 0x00007f0ac20e312a in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#66 0x00007f0ac20e6988 in ?? () from /lib/libglib-2.0.so.0
#67 0x00007f0ac20e6b3c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#68 0x00007f0ac5215bff in QEventDispatcherGlib::processEvents (this=0x1b44490, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#69 0x00007f0ac5e4964f in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#70 0x00007f0ac51ebde2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#71 0x00007f0ac51ec1b4 in QEventLoop::exec (this=0x7fffcf495ad0, flags=...) at kernel/qeventloop.cpp:201
#72 0x00007f0ac51ee424 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#73 0x000000000040cada in main (argc=1, argv=0x7fffcf495e18) at ../../../systemsettings/app/main.cpp:51

This bug may be a duplicate of or related to bug 188623

Reported using DrKonqi