Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.32-trunk-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
100% reproducable,

have all newest packages from debian unstable distro

 -- Backtrace:
Application: Przestrzeń robocza Plazmy (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  0x00007f427e6c0cbe in QtPrivate::QStringList_contains (that=0x7fffb4f70f80, str=..., cs=Qt::CaseSensitive) at tools/qstringlist.cpp:318
#6  0x00007f425f85da76 in QStringList::contains (this=<value optimized out>, device=<value optimized out>) at /usr/include/qt4/QtCore/qstringlist.h:171
#7  HalPower::brightness (this=<value optimized out>, device=<value optimized out>) at ../../../solid/hal/halpower.cpp:395
#8  0x00007f4262457ca4 in Solid::Control::PowerManager::brightness (device=<value optimized out>) at ../../../../libs/solid/control/powermanager.cpp:198
#9  0x00007f4261362806 in Battery::initExtenderItem (this=0x2776a40, item=0x2b1daf0) at ../../../../plasma/applets/battery/battery.cpp:406
#10 0x00007f427602c0e6 in Plasma::ExtenderPrivate::loadExtenderItems (this=0x2b1ec20) at ../../plasma/extender.cpp:659
#11 0x00007f427602d19d in Extender (this=0x2b41e40, applet=<value optimized out>) at ../../plasma/extender.cpp:114
#12 0x00007f4275ff275d in Plasma::Applet::extender (this=0x2776a40) at ../../plasma/applet.cpp:688
#13 0x00007f4261365e39 in Battery::init (this=0x2776a40) at ../../../../plasma/applets/battery/battery.cpp:148
#14 0x00007f4276018a0a in Plasma::Corona::loadLayout (this=0x23de0b0, configName=<value optimized out>) at ../../plasma/corona.cpp:377
#15 0x00007f4276019ab2 in Plasma::Corona::initializeLayout (this=0x23de0b0, configName=...) at ../../plasma/corona.cpp:324
#16 0x00007f42735b7a36 in PlasmaApp::corona (this=0x2334e80) at ../../../../plasma/shells/desktop/plasmaapp.cpp:574
#17 0x00007f42735b7d08 in PlasmaApp::setupDesktop (this=0x2334e80) at ../../../../plasma/shells/desktop/plasmaapp.cpp:252
#18 0x00007f42735b7f1c in PlasmaApp::qt_metacall (this=0x2334e80, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb4f72160) at ./plasmaapp.moc:115
#19 0x00007f427e76ddf2 in QMetaObject::activate (sender=0x23f9b20, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3112
#20 0x00007f427e772f5f in QSingleShotTimer::timerEvent (this=0x23f9b20) at kernel/qtimer.cpp:298
#21 0x00007f427e768353 in QObject::event (this=0x23f9b20, e=0x2b6ed28) at kernel/qobject.cpp:1074
#22 0x00007f427c6d901d in QApplicationPrivate::notify_helper (this=0x234ad50, receiver=0x23f9b20, e=0x7fffb4f72820) at kernel/qapplication.cpp:4065
#23 0x00007f427c6e107a in QApplication::notify (this=0x2334e80, receiver=0x23f9b20, e=0x7fffb4f72820) at kernel/qapplication.cpp:4030
#24 0x00007f427d330e06 in KApplication::notify (this=0x2334e80, receiver=0x23f9b20, event=0x7fffb4f72820) at ../../kdeui/kernel/kapplication.cpp:302
#25 0x00007f427e758c9c in QCoreApplication::notifyInternal (this=0x2334e80, receiver=0x23f9b20, event=0x7fffb4f72820) at kernel/qcoreapplication.cpp:610
#26 0x00007f427e7852c6 in QCoreApplication::sendEvent (this=0x234e2c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#27 QTimerInfoList::activateTimers (this=0x234e2c0) at kernel/qeventdispatcher_unix.cpp:580
#28 0x00007f427e781634 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#29 0x00007f427b5ef8fe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#30 0x00007f427b5f32b8 in ?? () from /lib/libglib-2.0.so.0
#31 0x00007f427b5f33e0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#32 0x00007f427e78139c in QEventDispatcherGlib::processEvents (this=0x22cd850, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#33 0x00007f427c76ff1f in QGuiEventDispatcherGlib::processEvents (this=0x2b6ed10, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#34 0x00007f427e757562 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#35 0x00007f427e757934 in QEventLoop::exec (this=0x7fffb4f72ad0, flags=...) at kernel/qeventloop.cpp:201
#36 0x00007f427e759ba4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#37 0x00007f427359e2af in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/shells/desktop/main.cpp:50
#38 0x0000000000406e9e in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=1, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a057 "0") at ../../kinit/kinit.cpp:677
#39 0x0000000000407aad in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#40 0x0000000000407f91 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#41 0x00000000004086c6 in main (argc=1, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 221627

Reported using DrKonqi