Application: plasma-desktop (0.3)
KDE Platform Version: 4.5.5 (KDE 4.5.5) (Compiled from sources)
Qt Version: 4.7.1
Operating System: Linux 2.6.35.11-83.fc14.x86_64 x86_64
Distribution (Platform): RedHat RPMs

-- Information about the crash:
- What I was doing when the application crashed: changing the resolution on the VGA monitor (Right of LVDS1), then clicking Apply

- Unusual behavior I noticed:Plasma -Desktop Display switched over from LVDS1 to the VGA Monitor , which was opposite of what the System Settings read.

- Custom settings of the application: 
LVDS1 (1280X800)
VGA1 1440X900   
Same issure re-occurs with multiple resolutions  configurations

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7fdab7971840 (LWP 5943))]

Thread 2 (Thread 0x7fda97fff700 (LWP 5968)):
#0  0x0000003abe8d7283 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x0000003abe442374 in g_main_context_poll (context=0x7fda8c0009b0, block=1, dispatch=1, self=<value optimized out>) at gmain.c:3093
#2  g_main_context_iterate (context=0x7fda8c0009b0, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2775
#3  0x0000003abe4428ad in g_main_context_iteration (context=0x7fda8c0009b0, may_block=1) at gmain.c:2843
#4  0x0000003ac9586916 in QEventDispatcherGlib::processEvents (this=0x7fda8c0008c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003ac955ab42 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x0000003ac955ad8c in QEventLoop::exec (this=0x7fda97ffed00, flags=...) at kernel/qeventloop.cpp:201
#7  0x0000003ac946fed4 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#8  0x0000003ac953c5f8 in QInotifyFileSystemWatcherEngine::run (this=0x175e600) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x0000003ac94726ee in QThreadPrivate::start (arg=0x175e600) at thread/qthread_unix.cpp:285
#10 0x0000003abf406ccb in start_thread (arg=0x7fda97fff700) at pthread_create.c:301
#11 0x0000003abe8e0c2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fdab7971840 (LWP 5943)):
[KCrash Handler]
#6  QWidget::mapToParent (this=0x0, pos=...) at kernel/qwidget.cpp:4159
#7  0x0000003acd9f894b in QWidget::mapTo (this=<value optimized out>, parent=0x180cba0, pos=<value optimized out>) at kernel/qwidget.cpp:4115
#8  0x00007fdaa4b44479 in SystemTray::X11EmbedPainter::performUpdates (this=0x11839a0) at /usr/src/debug/kdebase-workspace-4.5.5/plasma/generic/applets/systemtray/protocols/fdo/x11embedpainter.cpp:134
#9  0x00007fdaa4b44858 in SystemTray::X11EmbedPainter::qt_metacall (this=0x11839a0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffe8cfea10) at /usr/src/debug/kdebase-workspace-4.5.5/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/x11embedpainter.moc:75
#10 0x0000003ac957004f in QMetaObject::activate (sender=0x1991a38, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3272
#11 0x0000003ac956f879 in QObject::event (this=0x1991a38, e=<value optimized out>) at kernel/qobject.cpp:1175
#12 0x0000003acd9b78c4 in QApplicationPrivate::notify_helper (this=0x665b30, receiver=0x1991a38, e=0x7fffe8cff150) at kernel/qapplication.cpp:4445
#13 0x0000003acd9bc3da in QApplication::notify (this=<value optimized out>, receiver=0x1991a38, e=0x7fffe8cff150) at kernel/qapplication.cpp:4324
#14 0x0000003acec20596 in KApplication::notify (this=0x651580, receiver=0x1991a38, event=0x7fffe8cff150) at /usr/src/debug/kdelibs-4.5.5/kdeui/kernel/kapplication.cpp:310
#15 0x0000003ac955b7ac in QCoreApplication::notifyInternal (this=0x651580, receiver=0x1991a38, event=0x7fffe8cff150) at kernel/qcoreapplication.cpp:732
#16 0x0000003ac95893fe in sendEvent (this=0x6692a0) at kernel/qcoreapplication.h:215
#17 QTimerInfoList::activateTimers (this=0x6692a0) at kernel/qeventdispatcher_unix.cpp:603
#18 0x0000003ac95861d4 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#19 0x0000003abe441e33 in g_main_dispatch (context=0x6681f0) at gmain.c:2149
#20 g_main_context_dispatch (context=0x6681f0) at gmain.c:2702
#21 0x0000003abe442610 in g_main_context_iterate (context=0x6681f0, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2780
#22 0x0000003abe4428ad in g_main_context_iteration (context=0x6681f0, may_block=1) at gmain.c:2843
#23 0x0000003ac95868bf in QEventDispatcherGlib::processEvents (this=0x6377b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#24 0x0000003acda5c59e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#25 0x0000003ac955ab42 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#26 0x0000003ac955ad8c in QEventLoop::exec (this=0x7fffe8cff3e0, flags=...) at kernel/qeventloop.cpp:201
#27 0x0000003ac955f24b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#28 0x0000003ad1237f88 in kdemain (argc=1, argv=0x7fffe8cff7d8) at /usr/src/debug/kdebase-workspace-4.5.5/plasma/desktop/shell/main.cpp:118
#29 0x0000003abe81ee5d in __libc_start_main (main=0x400920 <main(int, char**)>, argc=1, ubp_av=0x7fffe8cff7d8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffe8cff7c8) at libc-start.c:226
#30 0x0000000000400849 in _start ()

This bug may be a duplicate of or related to bug 201620.

Possible duplicates by query: bug 268275, bug 266947, bug 263820, bug 262042, bug 257052.

Reported using DrKonqi