Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.1 (KDE 4.4.1)
Qt Version: 4.6.2
Operating System: Linux 2.6.31-20-generic i686
Distribution: Ubuntu 9.10

-- Information about the crash:
After upgrading a restart followed. Normal login procedure. The moment KDE kicks in the screen gets black, apart from the applications which were there when I rebooted the system. No system tray. No K icon (Kubuntu) to get to other app's.

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma-werkgebied (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#6  0x020c7a90 in Plasma::Wallpaper::setUsingRenderingCache (this=0x8c08080, useCache=true) at ../../plasma/wallpaper.cpp:351
#7  0x02639579 in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#8  0x020c7909 in Plasma::Wallpaper::restore (this=0x8c08080, config=...) at ../../plasma/wallpaper.cpp:264
#9  0x01fed85c in Plasma::Applet::paint (this=0x8c73a58, painter=0x11b2764, option=0x883b3c0, widget=0x91f8980) at ../../plasma/applet.cpp:1346
#10 0x0197d02c in _q_paintItem (item=<value optimized out>, painter=<value optimized out>, option=0x883b3c0, widget=0x91f8980, useWindowOpacity=true, painterStateProtection=true)
    at graphicsview/qgraphicsscene.cpp:4243
#11 0x01997c34 in QGraphicsScenePrivate::drawItemHelper (this=0x883b260, item=0x8c73a60, painter=0xbff1de94, option=0x883b3c0, widget=0x91f8980, painterStateProtection=<value optimized out>)
    at graphicsview/qgraphicsscene.cpp:4311
#12 0x0199a0e4 in QGraphicsScenePrivate::draw (this=0x883b260, item=0x8c73a60, painter=0xbff1de94, viewTransform=0x0, transformPtr=0x8c30160, exposedRegion=0x91c1c0c, widget=0x91f8980, opacity=1, 
    effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4827
#13 0x0199ad6b in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x883b260, item=0x8c73a60, painter=0xbff1de94, viewTransform=0x0, exposedRegion=0x91c1c0c, widget=0x91f8980, parentOpacity=1, 
    effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4749
#14 0x0199b73e in QGraphicsScenePrivate::drawItems (this=0x883b260, painter=0xbff1de94, viewTransform=0x0, exposedRegion=0x91c1c0c, widget=0x91f8980) at graphicsview/qgraphicsscene.cpp:4619
#15 0x019b5cab in QGraphicsView::paintEvent (this=0x91bff98, event=0xbff1e594) at graphicsview/qgraphicsview.cpp:3393
#16 0x013465d6 in QWidget::event (this=0x91bff98, event=0xbff1e594) at kernel/qwidget.cpp:8144
#17 0x01742733 in QFrame::event (this=0x91bff98, e=0xbff1e594) at widgets/qframe.cpp:557
#18 0x017dc9b2 in QAbstractScrollArea::viewportEvent (this=0xa, e=0x1) at widgets/qabstractscrollarea.cpp:1036
#19 0x019b212b in QGraphicsView::viewportEvent (this=0x91bff98, event=0xbff1e594) at graphicsview/qgraphicsview.cpp:2787
#20 0x017df2a5 in QAbstractScrollAreaPrivate::viewportEvent (this=0x91d2e58, o=0x91f8980, e=0xbff1e594) at widgets/qabstractscrollarea_p.h:100
#21 QAbstractScrollAreaFilter::eventFilter (this=0x91d2e58, o=0x91f8980, e=0xbff1e594) at widgets/qabstractscrollarea_p.h:116
#22 0x0109be8a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x87d2ff8, receiver=0x91f8980, event=0xbff1e594) at kernel/qcoreapplication.cpp:819
#23 0x012e83a9 in QApplicationPrivate::notify_helper (this=0x87d2ff8, receiver=0x91f8980, e=0xbff1e594) at kernel/qapplication.cpp:4296
#24 0x012ef0b9 in QApplication::notify (this=0x87cd2b8, receiver=0x91f8980, e=0xbff1e594) at kernel/qapplication.cpp:4265
#25 0x00d5c42a in KApplication::notify (this=0x87cd2b8, receiver=0x91f8980, event=0xbff1e594) at ../../kdeui/kernel/kapplication.cpp:302
#26 0x0109cbeb in QCoreApplication::notifyInternal (this=0x87cd2b8, receiver=0x91f8980, event=0xbff1e594) at kernel/qcoreapplication.cpp:704
#27 0x0134f8e6 in QCoreApplication::sendSpontaneousEvent (this=0x91f8998, pdev=0x91f9714, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x91f94a8)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#28 QWidgetPrivate::drawWidget (this=0x91f8998, pdev=0x91f9714, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x91f94a8) at kernel/qwidget.cpp:5339
#29 0x01350725 in QWidgetPrivate::paintSiblingsRecursive (this=0x91c18a8, pdev=0x91f9714, siblings=..., index=3, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x91f94a8)
    at kernel/qwidget.cpp:5452
#30 0x0134f635 in QWidgetPrivate::drawWidget (this=0x91c18a8, pdev=0x91f9714, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x91f94a8) at kernel/qwidget.cpp:5388
#31 0x01525f00 in QWidgetBackingStore::sync (this=0x91f94a8) at painting/qbackingstore.cpp:1291
#32 0x0133fa93 in QWidgetPrivate::syncBackingStore (this=0x91c18a8) at kernel/qwidget.cpp:1672
#33 0x0136d38e in QETWidget::translateConfigEvent (this=0x91bff98, event=0xbff1f27c) at kernel/qapplication_x11.cpp:5252
#34 0x013789f6 in QApplication::x11ProcessEvent (this=0x87cd2b8, event=0xbff1f27c) at kernel/qapplication_x11.cpp:3406
#35 0x013a800a in x11EventSourceDispatch (s=0x87d5d00, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0x08687e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#37 0x0868b730 in ?? () from /lib/libglib-2.0.so.0
#38 0x0868b863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#39 0x010c8805 in QEventDispatcherGlib::processEvents (this=0x87d2ea0, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#40 0x013a7b35 in QGuiEventDispatcherGlib::processEvents (this=0x87d2ea0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x0109b209 in QEventLoop::processEvents (this=0xbff1f574, flags=) at kernel/qeventloop.cpp:149
#42 0x0109b65a in QEventLoop::exec (this=0xbff1f574, flags=...) at kernel/qeventloop.cpp:201
#43 0x0109f84f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#44 0x012e8467 in QApplication::exec () at kernel/qapplication.cpp:3579
#45 0x022fe80d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#46 0x0804dff7 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x87c2df8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051405 "0") at ../../kinit/kinit.cpp:717
#47 0x0804ec15 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#48 0x0804f08c in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1402
#49 0x0804fe2f in main (argc=2, argv=0xbff20004, envp=0xbff20010) at ../../kinit/kinit.cpp:1841

Possible duplicates by query: bug 228517, bug 228397, bug 227701, bug 227401, bug 227387.

Reported using DrKonqi