Application: kcmshell5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
I was configuring my 3 screens. The error has fired but the monitors has been confu¡igured correctly.

The only thing  that doesn't works is that in the next reboot i loose my 3 screens configuration and i must configure again...  is boring but i suppose is an temporal error with the new version of kubuntu.

- Custom settings of the application:

I have 2 graphics cards in my DELL T1600:
Xeon E3-1200 Processor Family Integrated Graphics Controller
Nvidia  GF108GL [Quadro 600]

I have conected nvidias DVI and dport outputs to 2 monitors and the intels VGA to the third monitor. I can't connect the Intels dport output because i never see nothing in the monitor, always blank screen...

With this Kubuntu 15.04 is the first time that the configuration of the three monitors hasn't been a pain... the only bad thing is that i loos this configuration in each reboot...

thanks !

-- Backtrace:
Application: Módulo de control de KDE (kcmshell5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6cc16f5800 (LWP 2507))]

Thread 6 (Thread 0x7f6caaf91700 (LWP 2508)):
#0  0x00007f6cc11e38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6cb98cfb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f6cb98d164f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f6cad729099 in QXcbEventReader::run (this=0x251a470) at qxcbconnection.cpp:1105
#4  0x00007f6cbf266b0e in QThreadPrivate::start (arg=0x251a470) at thread/qthread_unix.cpp:337
#5  0x00007f6cbec9d6aa in start_thread (arg=0x7f6caaf91700) at pthread_create.c:333
#6  0x00007f6cc11eeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f6c9dc92700 (LWP 2510)):
#0  0x00007f6cc11e38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6cb91abebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6cb91ac242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6ca8c42ae6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f6cb91d2955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6cbec9d6aa in start_thread (arg=0x7f6c9dc92700) at pthread_create.c:333
#6  0x00007f6cc11eeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f6c9d491700 (LWP 2511)):
#0  0x00007f6cc11e38dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6cb91abebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6cb91abfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6cb91ac009 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6cb91d2955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6cbec9d6aa in start_thread (arg=0x7f6c9d491700) at pthread_create.c:333
#6  0x00007f6cc11eeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f6c8b42f700 (LWP 2519)):
#0  0x00007f6cc11df49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6cb3388f45 in ?? () from /usr/lib/nvidia-340/tls/libnvidia-tls.so.340.76
#2  0x00007f6cb91ef2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6cb91ab96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6cb91abe60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f6cb91abfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f6cbf4fdc6c in QEventDispatcherGlib::processEvents (this=0x7f6c800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f6cbf4a23e2 in QEventLoop::exec (this=this@entry=0x7f6c8b42eda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f6cbf261b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f6cbe6a7f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f6cbf266b0e in QThreadPrivate::start (arg=0x29d48c0) at thread/qthread_unix.cpp:337
#11 0x00007f6cbec9d6aa in start_thread (arg=0x7f6c8b42f700) at pthread_create.c:333
#12 0x00007f6cc11eeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f6c7efe6700 (LWP 2520)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6cbf267c6b in wait (time=18446744073709551615, this=0x29b9760) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x29319f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f6cbe153fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f6cbe1543a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f6cbf266b0e in QThreadPrivate::start (arg=0x2931970) at thread/qthread_unix.cpp:337
#6  0x00007f6cbec9d6aa in start_thread (arg=0x7f6c7efe6700) at pthread_create.c:333
#7  0x00007f6cc11eeeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f6cc16f5800 (LWP 2507)):
[KCrash Handler]
#6  0x00007f6c975dcdf4 in isEmpty (this=0x30) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:791
#7  KScreen::ConfigOperation::hasError (this=this@entry=0x2ba6c00) at ../../src/configoperation.cpp:76
#8  0x00007f6c975dd026 in KScreen::ConfigOperation::exec (this=0x2ba6c00) at ../../src/configoperation.cpp:109
#9  0x00007f6c9c11333c in KCMKScreen::save (this=0x2ba6c00) at ../../../kcm/src/kcm_kscreen.cpp:144
#10 0x00007f6cc0ec7077 in KCModuleProxy::save (this=this@entry=0x2818eb0) at ../../src/kcmoduleproxy.cpp:272
#11 0x00007f6cc0ec42f0 in KCMultiDialogPrivate::apply (this=<optimized out>) at ../../src/kcmultidialog.cpp:323
#12 0x00007f6cc0ec4695 in KCMultiDialog::qt_static_metacall (_o=0x2ba6c00, _c=QMetaObject::ReadProperty, _id=1, _a=0x0) at ./moc_kcmultidialog.cpp:112
#13 0x00007f6cbf4d59c9 in QMetaObject::activate (sender=sender@entry=0x280fdf0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffcc4497120) at kernel/qobject.cpp:3716
#14 0x00007f6cbf4d6057 in QMetaObject::activate (sender=sender@entry=0x280fdf0, m=m@entry=0x7f6cbfd9ba60 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffcc4497120) at kernel/qobject.cpp:3582
#15 0x00007f6cbfc10012 in QAbstractButton::clicked (this=this@entry=0x280fdf0, _t1=false) at .moc/moc_qabstractbutton.cpp:298
#16 0x00007f6cbf95d675 in QAbstractButtonPrivate::emitClicked (this=0x2810080) at widgets/qabstractbutton.cpp:534
#17 0x00007f6cbf95e299 in QAbstractButtonPrivate::click (this=0x2810080) at widgets/qabstractbutton.cpp:527
#18 0x00007f6cbf95e454 in QAbstractButton::mouseReleaseEvent (this=0x280fdf0, e=0x7ffcc44975e0) at widgets/qabstractbutton.cpp:1132
#19 0x00007f6cbf8a51e8 in QWidget::event (this=0x280fdf0, event=0x7ffcc44975e0) at kernel/qwidget.cpp:9022
#20 0x00007f6cbf861b2c in QApplicationPrivate::notify_helper (this=0x24ef5f0, receiver=0x280fdf0, e=0x7ffcc44975e0) at kernel/qapplication.cpp:3720
#21 0x00007f6cbf8678eb in QApplication::notify (this=0x7ffcc4497320, receiver=0x7ffcc4497340, e=0x7ffcc44975e0) at kernel/qapplication.cpp:3280
#22 0x00007f6cbf4a4c2b in QCoreApplication::notifyInternal (this=0x7ffcc4497f10, receiver=receiver@entry=0x280fdf0, event=event@entry=0x7ffcc44975e0) at kernel/qcoreapplication.cpp:935
#23 0x00007f6cbf8663da in sendSpontaneousEvent (event=0x7ffcc44975e0, receiver=0x280fdf0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QApplicationPrivate::sendMouseEvent (receiver=0x280fdf0, event=0x7ffcc44975e0, alienWidget=0x280fdf0, nativeWidget=0x2812470, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#25 0x00007f6cbf8bdcc0 in QWidgetWindow::handleMouseEvent (this=0x28b2960, event=0x7ffcc44979f0) at kernel/qwidgetwindow.cpp:543
#26 0x00007f6cbf8bfe33 in QWidgetWindow::event (this=0x28b2960, event=0x7ffcc44979f0) at kernel/qwidgetwindow.cpp:210
#27 0x00007f6cbf861b2c in QApplicationPrivate::notify_helper (this=0x24ef5f0, receiver=0x28b2960, e=0x7ffcc44979f0) at kernel/qapplication.cpp:3720
#28 0x00007f6cbf867000 in QApplication::notify (this=0x7ffcc4497f10, receiver=0x28b2960, e=0x7ffcc44979f0) at kernel/qapplication.cpp:3503
#29 0x00007f6cbf4a4c2b in QCoreApplication::notifyInternal (this=0x7ffcc4497f10, receiver=0x28b2960, event=0x7ffcc44979f0) at kernel/qcoreapplication.cpp:935
#30 0x00007f6cbcd83f82 in sendSpontaneousEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 QGuiApplicationPrivate::processMouseEvent (e=0x2fe30e0) at kernel/qguiapplication.cpp:1774
#32 0x00007f6cbcd85b45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x2fe30e0) at kernel/qguiapplication.cpp:1576
#33 0x00007f6cbcd6a34f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#34 0x00007f6cad753590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#35 0x00007f6cb91abc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f6cb91abf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f6cb91abfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f6cbf4fdc57 in QEventDispatcherGlib::processEvents (this=0x24e3e40, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#39 0x00007f6cbf4a23e2 in QEventLoop::exec (this=this@entry=0x7ffcc4497da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#40 0x00007f6cbfa634b5 in QDialog::exec (this=0x2812470) at dialogs/qdialog.cpp:541
#41 0x00007f6cc14ba9cb in kdemain (_argc=<optimized out>, _argv=<optimized out>) at ../../kcmshell/main.cpp:307
#42 0x00007f6cc1108a40 in __libc_start_main (main=0x400730 <main(int, char**)>, argc=2, argv=0x7ffcc4498058, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcc4498048) at libc-start.c:289
#43 0x0000000000400769 in _start ()

Reported using DrKonqi