Application: kcmshell5 (5.16.3)

Qt Version: 5.12.4
Frameworks Version: 5.59.0
Operating System: Linux 5.1.16-300.fc30.x86_64 x86_64
Distribution: "Fedora release 30 (Thirty)"

-- Information about the crash:
- What I was doing when the application crashed:

Trying to open display settings to configure monitor position. Crashes immediatly. Must be related to some config I don't understand because it work with another user session

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings Module (kcmshell5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f62aa962280 (LWP 11154))]

Thread 5 (Thread 0x7f62948c7700 (LWP 11175)):
#0  0x00007f62ad420d28 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007f62ad3d474d in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007f62ad3d510b in ?? () from /lib64/libglib-2.0.so.0
#3  0x00007f62ad3d5313 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007f62af155bf3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f62af0ff9eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007f62aef58635 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007f62ae4e2a69 in ?? () from /lib64/libQt5Qml.so.5
#8  0x00007f62aef59786 in ?? () from /lib64/libQt5Core.so.5
#9  0x00007f62b04f25a2 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f62b060c303 in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f6295988700 (LWP 11158)):
#0  0x00007f62b04f84d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f629652853b in ?? () from /usr/lib64/dri/i965_dri.so
#2  0x00007f629652827b in ?? () from /usr/lib64/dri/i965_dri.so
#3  0x00007f62b04f25a2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f62b060c303 in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f6297fff700 (LWP 11157)):
#0  0x00007f62b06015c7 in poll () from /lib64/libc.so.6
#1  0x00007f62ad3d51de in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007f62ad3d5313 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f62af155bf3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f62af0ff9eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f62aef58635 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f62b0053f4a in ?? () from /lib64/libQt5DBus.so.5
#7  0x00007f62aef59786 in ?? () from /lib64/libQt5Core.so.5
#8  0x00007f62b04f25a2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f62b060c303 in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f629d69c700 (LWP 11156)):
#0  0x00007f62b06015c7 in poll () from /lib64/libc.so.6
#1  0x00007f62adc9538a in ?? () from /lib64/libxcb.so.1
#2  0x00007f62adc96ffa in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f629d873b98 in ?? () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f62aef59786 in ?? () from /lib64/libQt5Core.so.5
#5  0x00007f62b04f25a2 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f62b060c303 in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f62aa962280 (LWP 11154)):
[KCrash Handler]
#6  0x00007f62af508bf4 in QHighDpiScaling::mapPositionFromGlobal(QPoint const&, QPoint const&, QWindow const*) () from /lib64/libQt5Gui.so.5
#7  0x00007f62af4db952 in QWindow::mapFromGlobal(QPoint const&) const () from /lib64/libQt5Gui.so.5
#8  0x00007f62ae8ba7e5 in QQuickWindow::event(QEvent*) () from /lib64/libQt5Quick.so.5
#9  0x00007f62afa65af6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#10 0x00007f62afa6ee80 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#11 0x00007f62af100ae8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#12 0x00007f62aec9bcf6 in QQuickWidget::event(QEvent*) () from /lib64/libQt5QuickWidgets.so.5
#13 0x00007f62afa65af6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#14 0x00007f62afa6ee80 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#15 0x00007f62af100ae8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#16 0x00007f62afa6db2c in ?? () from /lib64/libQt5Widgets.so.5
#17 0x00007f62afa6e4eb in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /lib64/libQt5Widgets.so.5
#18 0x00007f62afac401d in ?? () from /lib64/libQt5Widgets.so.5
#19 0x00007f62afac6eac in ?? () from /lib64/libQt5Widgets.so.5
#20 0x00007f62afa65af6 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#21 0x00007f62afa6ee80 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#22 0x00007f62af100ae8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#23 0x00007f62af4d5848 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib64/libQt5Gui.so.5
#24 0x00007f62af4d715b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /lib64/libQt5Gui.so.5
#25 0x00007f62af4b2d1b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Gui.so.5
#26 0x00007f629d874b9e in ?? () from /lib64/libQt5XcbQpa.so.5
#27 0x00007f62ad3d4edd in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#28 0x00007f62ad3d5270 in ?? () from /lib64/libglib-2.0.so.0
#29 0x00007f62ad3d5313 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#30 0x00007f62af155bd5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#31 0x00007f62af0ff9eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#32 0x00007f62af107726 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#33 0x00007f62b06e16d9 in kdemain () from /lib64/libkdeinit5_kcmshell5.so
#34 0x00007f62b0534f33 in __libc_start_main () from /lib64/libc.so.6
#35 0x000056005cbcc0ae in _start ()
[Inferior 1 (process 11154) detached]

Reported using DrKonqi