Application: systemsettings (1.0)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.38-1.dmz.1-liquorix-686 i686
Distribution: Debian GNU/Linux testing (wheezy)

-- Information about the crash:
Just double-clicking on the icon, as usual, immediately brings the crash dialog.

I guess it coincided with me starting to use the monitor rotated vertically, via xorg.conf, I'm not sure yet.

I'm also running openbox, not full KDE, but it was not an issue until very recently.

The crash can be reproduced every time.

 -- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
[KCrash Handler]
#6  0x498b5fad in QString::operator== (this=0x8c79e94, other=...) at tools/qstring.cpp:2060
#7  0xb50beb42 in KGamma::loadSystemSettings (this=0x8c6d5a0) at ../../../kgamma/kcmkgamma/kgamma.cpp:497
#8  0xb50bf971 in KGamma::loadSettings (this=0x8c6d5a0) at ../../../kgamma/kcmkgamma/kgamma.cpp:411
#9  0xb50bffd6 in KGamma::KGamma (this=0x8c6d5a0, parent_P=0x8c6c880) at ../../../kgamma/kcmkgamma/kgamma.cpp:100
#10 0xb50c0ffd in KPluginFactory::createInstance<KGamma, QWidget> (parentWidget=0x0, parent=0x8c6c880, args=...) at /usr/include/kpluginfactory.h:461
#11 0x4a07685e in KPluginFactory::create (this=0x8c6d170, iface=0x4af26300 "KCModule", parentWidget=0x0, parent=0x8c6c880, args=..., keyword=...) at ../../kdecore/util/kpluginfactory.cpp:191
#12 0x4d17926a in create<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x8c6c880, args=...) at ../../kdecore/util/kpluginfactory.h:515
#13 createInstance<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x8c6c880, args=...) at ../../kdecore/services/kservice.h:517
#14 createInstance<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x8c6c880, args=...) at ../../kdecore/services/kservice.h:494
#15 createInstance<KCModule> (mod=..., report=KCModuleLoader::Inline, parent=0x8c6c880, args=...) at ../../kdecore/services/kservice.h:537
#16 KCModuleLoader::loadModule (mod=..., report=KCModuleLoader::Inline, parent=0x8c6c880, args=...) at ../../kutils/kcmoduleloader.cpp:89
#17 0x4d17e78d in KCModuleProxyPrivate::loadModule (this=0x8b0ca70) at ../../kutils/kcmoduleproxy.cpp:106
#18 0x4d17f483 in KCModuleProxy::realModule (this=0x8c6c880) at ../../kutils/kcmoduleproxy.cpp:83
#19 0x4f10f581 in ModuleView::updatePageIconHeader(KPageWidgetItem*) () from /usr/lib/libsystemsettingsview.so.1
#20 0x4f1106e2 in ModuleView::addModule(KCModuleInfo*) () from /usr/lib/libsystemsettingsview.so.1
#21 0x4f1109b3 in ModuleView::loadModule(MenuItem*) () from /usr/lib/libsystemsettingsview.so.1
#22 0xb5a03080 in ?? () from /usr/lib/kde4/icon_mode.so
#23 0xb5a0384d in ?? () from /usr/lib/kde4/icon_mode.so
#24 0x49970aca in QMetaObject::metacall (object=0x888a810, cl=3220897336, idx=-1074068032, argv=0x89edbc0) at kernel/qmetaobject.cpp:237
#25 0x4997f4db in QMetaObject::activate (sender=0x8713f08, m=0x4ab74ea4, local_signal_index=3, argv=0xbffb0708) at kernel/qobject.cpp:3295
#26 0x4a7d8963 in QAbstractItemView::activated (this=0x8713f08, _t1=...) at .moc/release-shared/moc_qabstractitemview.cpp:345
#27 0x4a7dbe87 in QAbstractItemView::mouseDoubleClickEvent (this=0x8713f08, event=0xbffb1104) at itemviews/qabstractitemview.cpp:1820
#28 0x4a29f64e in QWidget::event (this=0x8713f08, event=0xbffb1104) at kernel/qwidget.cpp:8048
#29 0x4a6998d3 in QFrame::event (this=0x8713f08, e=0xbffb1104) at widgets/qframe.cpp:557
#30 0x4a734092 in QAbstractScrollArea::viewportEvent (this=0xbffafe38, e=0x8c835c8) at widgets/qabstractscrollarea.cpp:1036
#31 0x4a7e98a7 in QAbstractItemView::viewportEvent (this=0x8713f08, event=0xbffb1104) at itemviews/qabstractitemview.cpp:1615
#32 0x4a736a65 in viewportEvent (this=0x870d8d8, o=0x871a3e0, e=0xbffb1104) at widgets/qabstractscrollarea_p.h:100
#33 QAbstractScrollAreaFilter::eventFilter (this=0x870d8d8, o=0x871a3e0, e=0xbffb1104) at widgets/qabstractscrollarea_p.h:116
#34 0x4996aa8a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x871b150, receiver=0x871a3e0, event=0xbffb1104) at kernel/qcoreapplication.cpp:841
#35 0x4a2415a9 in QApplicationPrivate::notify_helper (this=0x871b150, receiver=0x871a3e0, e=0xbffb1104) at kernel/qapplication.cpp:4298
#36 0x4a248af7 in QApplication::notify (this=0xbffb18cc, receiver=0x871a3e0, e=0xbffb1104) at kernel/qapplication.cpp:3867
#37 0x4ad7cbfa in KApplication::notify (this=0xbffb18cc, receiver=0x871a3e0, event=0xbffb1104) at ../../kdeui/kernel/kapplication.cpp:302
#38 0x4996b7eb in QCoreApplication::notifyInternal (this=0xbffb18cc, receiver=0x871a3e0, event=0xbffb1104) at kernel/qcoreapplication.cpp:726
#39 0x4a247a52 in sendEvent (receiver=0x871a3e0, event=0xbffb1104, alienWidget=0x871a3e0, nativeWidget=0x87e5130, buttonDown=0x4ab89998, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#40 QApplicationPrivate::sendMouseEvent (receiver=0x871a3e0, event=0xbffb1104, alienWidget=0x871a3e0, nativeWidget=0x87e5130, buttonDown=0x4ab89998, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2967
#41 0x4a2d2d4c in QETWidget::translateMouseEvent (this=0x87e5130, event=0xbffb1550) at kernel/qapplication_x11.cpp:4380
#42 0x4a2d2253 in QApplication::x11ProcessEvent (this=0xbffb18cc, event=0xbffb1550) at kernel/qapplication_x11.cpp:3391
#43 0x4a300372 in x11EventSourceDispatch (s=0x871e400, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#44 0x49313382 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#45 0x49313b60 in ?? () from /lib/libglib-2.0.so.0
#46 0x49313e14 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#47 0x49997395 in QEventDispatcherGlib::processEvents (this=0x86efc08, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#48 0x4a2ffed5 in QGuiEventDispatcherGlib::processEvents (this=0x86efc08, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#49 0x49969e09 in QEventLoop::processEvents (this=0xbffb1824, flags=) at kernel/qeventloop.cpp:149
#50 0x4996a25a in QEventLoop::exec (this=0xbffb1824, flags=...) at kernel/qeventloop.cpp:201
#51 0x4996f48f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#52 0x4a241667 in QApplication::exec () at kernel/qapplication.cpp:3581
#53 0x08056b5e in _start ()

Reported using DrKonqi