Version:            (using KDE 4.2.3)
Installed from:    SuSE RPMs

Nothing really to explain, when I returned to my laptop I found this plasma crash:

Application: Plasma Workspace (plasma), signal SIGSEGV
[Current thread is 1 (Thread 0xb44e9720 (LWP 18205))]

Thread 4 (Thread 0xa8669b90 (LWP 18216)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb635e411 in select () from /lib/libc.so.6
#2  0xb6654dc7 in ?? () from /usr/lib/libQtCore.so.4
#3  0xb658585e in ?? () from /usr/lib/libQtCore.so.4
#4  0xb65231b5 in start_thread () from /lib/libpthread.so.0
#5  0xb63653be in clone () from /lib/libc.so.6

Thread 3 (Thread 0xa7e68b90 (LWP 18218)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6526c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb6586872 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb79850d2 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb658585e in ?? () from /usr/lib/libQtCore.so.4
#5  0xb65231b5 in start_thread () from /lib/libpthread.so.0
#6  0xb63653be in clone () from /lib/libc.so.6

Thread 2 (Thread 0xa717db90 (LWP 18240)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6526c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb6586872 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xa8eb3d6a in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#4  0xb658585e in ?? () from /usr/lib/libQtCore.so.4
#5  0xb65231b5 in start_thread () from /lib/libpthread.so.0
#6  0xb63653be in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb44e9720 (LWP 18205)):
[KCrash Handler]
#6  0xb6991f51 in QImage::scanLine(int) () from /usr/lib/libQtGui.so.4
#7  0xb696ef99 in QWidgetPrivate::setWindowIcon_sys(bool) () from /usr/lib/libQtGui.so.4
#8  0xb693b5d8 in QWidget::create(unsigned long, bool, bool) () from /usr/lib/libQtGui.so.4
#9  0xb69410ee in QWidget::setVisible(bool) () from /usr/lib/libQtGui.so.4
#10 0xb6eb2a86 in ?? () from /usr/lib/libQtGui.so.4
#11 0xb6eb2e93 in QGraphicsProxyWidget::setWidget(QWidget*) () from /usr/lib/libQtGui.so.4
#12 0xb7e8e7e8 in PushButton (this=0xc78af58, parent=0xc607120) at /usr/src/debug/kdelibs-4.2.3/plasma/widgets/pushbutton.cpp:146
#13 0xa933685b in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#14 0xa9337069 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#15 0xa9337d1f in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#16 0xa932ec58 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#17 0xa932f7bc in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#18 0xb668a580 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#19 0xb668b302 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#20 0xa931da73 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#21 0xa931e21c in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#22 0xb668a580 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#23 0xb668b302 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#24 0xa931ea03 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#25 0xa932a690 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#26 0xa932b2a9 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#27 0xb667e5aa in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () from /usr/lib/libQtCore.so.4
#28 0xb7e23b0d in Plasma::DataEnginePrivate::connectSource (this=0x832b470, s=0xc6f0920, visualization=0x832d748, pollingInterval=0, align=Plasma::NoAlignment, immediateCall=true)
    at /usr/include/QtCore/qobjectdefs.h:382
#29 0xb7e2443d in Plasma::DataEngine::connectSource (this=0x83211c0, source=@0xbffecd00, visualization=0x832d748, pollingInterval=0, intervalAlignment=Plasma::NoAlignment)
    at /usr/src/debug/kdelibs-4.2.3/plasma/dataengine.cpp:96
#30 0xa932985b in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#31 0xa932b2c6 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#32 0xb668a580 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#33 0xb668b302 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#34 0xb7e23243 in Plasma::DataEngine::sourceAdded (this=0x83211c0, _t1=@0xbffecd00) at /usr/src/debug/kdelibs-4.2.3/build/plasma/dataengine.moc:174
#35 0xb7e24717 in Plasma::DataEngine::setData (this=0x83211c0, source=@0xbffecd00, data=@0xbffecd2c) at /usr/src/debug/kdelibs-4.2.3/plasma/dataengine.cpp:211
#36 0xa89917ba in ?? () from /usr/lib/kde4/plasma_engine_notifications.so
#37 0xa8993047 in ?? () from /usr/lib/kde4/plasma_engine_notifications.so
#38 0xb677fe6f in ?? () from /usr/lib/libQtDBus.so.4
#39 0xb6781031 in ?? () from /usr/lib/libQtDBus.so.4
#40 0xb6781441 in ?? () from /usr/lib/libQtDBus.so.4
#41 0xb678193a in ?? () from /usr/lib/libQtDBus.so.4
#42 0xb6685281 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#43 0xb68e58fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#44 0xb68ed75e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#45 0xb76d30cd in KApplication::notify (this=0x80608f8, receiver=0x83211c0, event=0xc793110) at /usr/src/debug/kdelibs-4.2.3/kdeui/kernel/kapplication.cpp:307
#46 0xb6675961 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#47 0xb66765d5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#48 0xb66767cd in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#49 0xb66a036f in ?? () from /usr/lib/libQtCore.so.4
#50 0xb56269c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#51 0xb562a083 in ?? () from /usr/lib/libglib-2.0.so.0
#52 0xb562a241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#53 0xb669ffb8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#54 0xb697e7c5 in ?? () from /usr/lib/libQtGui.so.4
#55 0xb667401a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#56 0xb66741da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#57 0xb6676895 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#58 0xb68e5777 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#59 0xb7f77dc6 in kdemain () from /usr/lib/libkdeinit4_plasma.so
#60 0x08048782 in _start ()