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:
When i do login, starts the splash and the plasma-desktop. After 1 or 2 seconds break and show the kde fault wizard. I try re-run the plasma-desktop calling by konsole or exec command (Alt+F2) and return the same problem.

Searching some bugs in Debian, i found some tips like remove (or backup) the ~/.kde/share/apps/plasma* because some problem with diversions between versions of python-kde4 and python-qt4 packages.

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556468

Bests
Claudio

 -- Backtrace:
Application: Espaço de trabalho do Plasma (plasma-desktop), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f827a043770 (LWP 8340))]

Thread 2 (Thread 0x7f825ba0d910 (LWP 8341)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f8276ac9499 in QWaitConditionPrivate::wait (this=0x2aa7860, mutex=0x2aa7858, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=0x2aa7860, mutex=0x2aa7858, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f827381b3b4 in QHostInfoAgent::run (this=0x2aa7840) at kernel/qhostinfo.cpp:260
#4  0x00007f8276ac84a5 in QThreadPrivate::start (arg=0x2aa7840) at thread/qthread_unix.cpp:188
#5  0x00007f827110273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f827994e69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f827a043770 (LWP 8340)):
[KCrash Handler]
#5  0x00007f8276b15cbe in QtPrivate::QStringList_contains (that=0x7fff8e0f6070, str=..., cs=Qt::CaseSensitive) at tools/qstringlist.cpp:318
#6  0x00007f825c482a76 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  0x00007f825dbdfca4 in Solid::Control::PowerManager::brightness (device=<value optimized out>) at ../../../../libs/solid/control/powermanager.cpp:198
#9  0x00007f825c270806 in Battery::initExtenderItem (this=0x2923250, item=0x2d3bf00) at ../../../../plasma/applets/battery/battery.cpp:406
#10 0x00007f825c273ee8 in Battery::init (this=0x2923250) at ../../../../plasma/applets/battery/battery.cpp:151
#11 0x00007f8279c0d9bb in DesktopCorona::saveDefaultSetup (this=0x23c3a80) at ../../../../plasma/shells/desktop/desktopcorona.cpp:287
#12 0x00007f8279c0ed11 in DesktopCorona::qt_metacall (this=0x23c3a80, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff8e0f69f0) at ./desktopcorona.moc:71
#13 0x00007f8276bc2df2 in QMetaObject::activate (sender=0x28eed10, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3112
#14 0x00007f8276bc7f5f in QSingleShotTimer::timerEvent (this=0x28eed10) at kernel/qtimer.cpp:298
#15 0x00007f8276bbd353 in QObject::event (this=0x28eed10, e=0x2ba9408) at kernel/qobject.cpp:1074
#16 0x00007f82772f101d in QApplicationPrivate::notify_helper (this=0x229b3d0, receiver=0x28eed10, e=0x7fff8e0f70b0) at kernel/qapplication.cpp:4065
#17 0x00007f82772f907a in QApplication::notify (this=0x228e460, receiver=0x28eed10, e=0x7fff8e0f70b0) at kernel/qapplication.cpp:4030
#18 0x00007f82783d5e06 in KApplication::notify (this=0x228e460, receiver=0x28eed10, event=0x7fff8e0f70b0) at ../../kdeui/kernel/kapplication.cpp:302
#19 0x00007f8276badc9c in QCoreApplication::notifyInternal (this=0x228e460, receiver=0x28eed10, event=0x7fff8e0f70b0) at kernel/qcoreapplication.cpp:610
#20 0x00007f8276bda2c6 in QCoreApplication::sendEvent (this=0x229ec30) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#21 QTimerInfoList::activateTimers (this=0x229ec30) at kernel/qeventdispatcher_unix.cpp:580
#22 0x00007f8276bd6658 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#24 0x00007f82713538fe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#25 0x00007f82713572b8 in ?? () from /lib/libglib-2.0.so.0
#26 0x00007f82713573e0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#27 0x00007f8276bd639c in QEventDispatcherGlib::processEvents (this=0x22756a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#28 0x00007f8277387f1f in QGuiEventDispatcherGlib::processEvents (this=0x2ba93f0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#29 0x00007f8276bac562 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#30 0x00007f8276bac934 in QEventLoop::exec (this=0x7fff8e0f7360, flags=...) at kernel/qeventloop.cpp:201
#31 0x00007f8276baeba4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#32 0x00007f8279c142af in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/shells/desktop/main.cpp:50
#33 0x00007f82798a1abd in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff8e0f7668) at libc-start.c:222
#34 0x0000000000400649 in _start ()
The current source language is "auto; currently asm".
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 220139

Reported using DrKonqi