.
Thread 1 (process 4912):
#0  0xb4646757 in ?? () from /usr/lib/kde4/kcm_randr.so
#1  0xb46414db in ?? () from /usr/lib/kde4/kcm_randr.so
#2  0xb7b334cb in KCModule::qt_metacall () from /usr/lib/libkdeui.so.5
#3  0xb4640962 in ?? () from /usr/lib/kde4/kcm_randr.so
#4  0xb753e90b in QMetaCallEvent::placeMetaCall ()
   from /usr/lib/libQtCore.so.4
#5  0xb75403b0 in QObject::event () from /usr/lib/libQtCore.so.4
#6  0xb6b37500 in QWidget::event () from /usr/lib/libQtGui.so.4
#7  0xb6ae0f5c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#8  0xb6ae9342 in QApplication::notify () from /usr/lib/libQtGui.so.4
#9  0xb7a7c70d in KApplication::notify () from /usr/lib/libkdeui.so.5
#10 0xb752fa4b in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#11 0xb75306a5 in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#12 0xb753089d in QCoreApplication::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#13 0xb755b7ff in ?? () from /usr/lib/libQtCore.so.4
#14 0xb6377a58 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#15 0xb637afbb in ?? () from /usr/lib/libglib-2.0.so.0
#16 0xb637b138 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#17 0xb755b448 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#18 0xb6b82425 in ?? () from /usr/lib/libQtGui.so.4
#19 0xb752e07a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#20 0xb752e4ba in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#21 0xb7530969 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#22 0xb6ae0dd7 in QApplication::exec () from /usr/lib/libQtGui.so.4
#23 0x08056c3b in _start ()