Version:           4.3.4 (using KDE 4.3.4)
OS:                Linux
Installed from:    Debian testing/unstable Packages

Application that crashed: kded4
Version of the application: $Id: kded.cpp 1031638 2009-10-05 16:59:11Z lunakl $
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.30-2-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
this crash is everytime few second after kde run

 -- Backtrace:
Application: KDE Daemon (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  0x00007f46bdc13cbe in QtPrivate::QStringList_contains (that=0x7fffb34e6b20, str=..., cs=Qt::CaseSensitive) at tools/qstringlist.cpp:318
#6  0x00007f46aedc8a76 in HalPower::brightness(QString const&) () from /usr/lib/kde4/solid_hal_power.so
#7  0x00007f46af3faca4 in Solid::Control::PowerManager::brightness(QString const&) () from /usr/lib/libsolidcontrol.so.4
#8  0x00007f46af631ed1 in PowerDevilDaemon::poll(int) () from /usr/lib/kde4/kded_powerdevil.so
#9  0x00007f46af632c5c in PowerDevilDaemon::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/kde4/kded_powerdevil.so
#10 0x00007f46bdcc0df2 in QMetaObject::activate (sender=0x125a640, from_signal_index=<value optimized out>, to_signal_index=36, argv=0x0) at kernel/qobject.cpp:3112
#11 0x00007f46af634831 in ?? () from /usr/lib/kde4/kded_powerdevil.so
#12 0x00007f46af63489e in ?? () from /usr/lib/kde4/kded_powerdevil.so
#13 0x00007f46bc8832d6 in KAppX11HackWidget::publicx11Event (this=<value optimized out>, _event=0x7fffb34e8b90) at ../../kdeui/kernel/kapplication.cpp:900
#14 KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fffb34e8b90) at ../../kdeui/kernel/kapplication.cpp:950
#15 0x00007f46bbc8739f in qt_x11EventFilter (ev=0x7fffb34e8b90) at kernel/qapplication_x11.cpp:377
#16 0x00007f46bbc9a4c1 in QApplication::x11ProcessEvent (this=0x7fffb34e8f70, event=0x7fffb34e8b90) at kernel/qapplication_x11.cpp:3273
#17 0x00007f46bbcc376c in x11EventSourceDispatch (s=0x110d8a0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#18 0x00007f46bab4313a in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#19 0x00007f46bab46998 in ?? () from /lib/libglib-2.0.so.0
#20 0x00007f46bab46b4c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#21 0x00007f46bdcd439c in QEventDispatcherGlib::processEvents (this=0x1101580, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#22 0x00007f46bbcc2f1f in QGuiEventDispatcherGlib::processEvents (this=0x12d1ec0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#23 0x00007f46bdcaa562 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f46bdcaa934 in QEventLoop::exec (this=0x7fffb34e8ec0, flags=...) at kernel/qeventloop.cpp:201
#25 0x00007f46bdcacba4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#26 0x00007f46b1cccc3b in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kded/kded.cpp:936
#27 0x0000000000406e9e in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a057 "0") at ../../kinit/kinit.cpp:677
#28 0x0000000000408a6a in main (argc=<value optimized out>, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1740