Crash after disconnecting monitor

#0  0x00007ffff7170842 in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x8)
    at ../../include/QtCore/../../../../../../src/qt/qt5/qtbase/src/corelib/tools/qscopedpointer.h:132
#1  0x00007ffff71bd108 in qGetPtrHelper<QScopedPointer<QObjectData> > (p=...)
    at ../../include/QtCore/../../../../../../src/qt/qt5/qtbase/src/corelib/global/qglobal.h:889
#2  0x00007ffff71bd204 in QScreen::d_func (this=0x0) at /home/thiago/src/qt/qt5/qtbase/src/gui/kernel/qscreen.h:67
#3  0x00007ffff71bc016 in QScreen::handle (this=0x0) at /home/thiago/src/qt/qt5/qtbase/src/gui/kernel/qscreen.cpp:82
#4  0x00007ffff717523e in QPlatformScreen::platformScreenForWindow (window=0x15307d0)
    at /home/thiago/src/qt/qt5/qtbase/src/gui/kernel/qplatformscreen.cpp:235
#5  0x00007ffff79663dd in QWidget::metric (this=0x5d9130, m=QPaintDevice::PdmDpiY)
    at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qwidget_qpa.cpp:819
#6  0x00007ffff71f3c58 in QPaintDevice::logicalDpiY (this=0x5d9140)
    at ../../include/QtGui/../../../../../../src/qt/qt5/qtbase/src/gui/painting/qpaintdevice.h:83
#7  0x00007ffff72209a9 in QFont::QFont (this=0x7fffffffae30, font=..., pd=0x5d9140)
    at /home/thiago/src/qt/qt5/qtbase/src/gui/text/qfont.cpp:617
#8  0x00007ffff7943480 in QWidget::initPainter (this=0x5d9130, painter=0x7fffffffb230)
    at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qwidget.cpp:11295
#9  0x00007ffff73927c7 in QPainter::initFrom (this=0x7fffffffb230, device=0x5d9140)
    at /home/thiago/src/qt/qt5/qtbase/src/gui/painting/qpainter.cpp:1548
#10 0x00007ffff7393a41 in QPainter::begin (this=0x7fffffffb230, pd=0x154ca50)
    at /home/thiago/src/qt/qt5/qtbase/src/gui/painting/qpainter.cpp:1827
#11 0x00007ffff73924ca in QPainter::QPainter (this=0x7fffffffb230, pd=0x5d9140)
    at /home/thiago/src/qt/qt5/qtbase/src/gui/painting/qpainter.cpp:1474
#12 0x00007ffff79351cd in QWidgetPrivate::drawWidget (this=0x5f8a00, pdev=0x154ca50, rgn=..., offset=..., flags=5, 
    sharedPainter=0x0, backingStore=0x1530f80) at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qwidget.cpp:5109
#13 0x00007ffff790125a in QWidgetBackingStore::sync (this=0x1530f80)
    at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qwidgetbackingstore.cpp:1090
#14 0x00007ffff792c37d in QWidgetPrivate::syncBackingStore (this=0x5f8a00)
    at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qwidget.cpp:1676
#15 0x00007ffff793dda4 in QWidget::event (this=0x5d9130, event=0x94400e0)
    at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qwidget.cpp:8180
#16 0x00007ffff7abe170 in QMainWindow::event (this=0x5d9130, event=0x94400e0)
    at /home/thiago/src/qt/qt5/qtbase/src/widgets/widgets/qmainwindow.cpp:1471
#17 0x00007ffff78f1d3e in QApplicationPrivate::notify_helper (this=0x41ce20, receiver=0x5d9130, e=0x94400e0)
    at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3444
#18 0x00007ffff78f1b9b in QApplication::notify (this=0x7fffffffc8f0, receiver=0x5d9130, e=0x94400e0)
    at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qapplication.cpp:3409
#19 0x00007ffff6d6ffdc in QCoreApplication::notifyInternal (this=0x7fffffffc8f0, receiver=0x5d9130, event=0x94400e0)
    at /home/thiago/src/qt/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:860
#20 0x00007ffff6d73c6b in QCoreApplication::sendEvent (receiver=0x5d9130, event=0x94400e0)
    at ../../include/QtCore/../../../../../../src/qt/qt5/qtbase/src/corelib/kernel/qcoreapplication.h:232
#21 0x00007ffff6d71304 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x41c380)
    at /home/thiago/src/qt/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1464
#22 0x00007ffff6d70ca5 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0)
    at /home/thiago/src/qt/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1322
#23 0x00007ffff6de039a in postEventSourceDispatch (s=0x42c130)
    at /home/thiago/src/qt/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:279
#24 0x0000003e6a847825 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#25 0x0000003e6a847b58 in ?? () from /lib64/libglib-2.0.so.0
#26 0x0000003e6a847c14 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#27 0x00007ffff6de0b61 in QEventDispatcherGlib::processEvents (this=0x4216b0, flags=...)
    at /home/thiago/src/qt/qt5/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:426
#28 0x00007ffff054dce6 in QPAEventDispatcherGlib::processEvents (this=0x4216b0, flags=...)
    at /home/thiago/src/qt/qt5/qtbase/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp:123
#29 0x00007ffff6d6c796 in QEventLoop::processEvents (this=0x7fffffffc790, flags=...)
    at /home/thiago/src/qt/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:136
#30 0x00007ffff6d6ca83 in QEventLoop::exec (this=0x7fffffffc790, flags=...)
    at /home/thiago/src/qt/qt5/qtbase/src/corelib/kernel/qeventloop.cpp:212
#31 0x00007ffff6d7069d in QCoreApplication::exec ()
    at /home/thiago/src/qt/qt5/qtbase/src/corelib/kernel/qcoreapplication.cpp:1113
#32 0x00007ffff7181062 in QGuiApplication::exec ()
    at /home/thiago/src/qt/qt5/qtbase/src/gui/kernel/qguiapplication.cpp:1198
#33 0x00007ffff78eea1b in QApplication::exec () at /home/thiago/src/qt/qt5/qtbase/src/widgets/kernel/qapplication.cpp:2689
#34 0x000000000040eb47 in main (argc=1, argv=0x7fffffffd8c8) at /home/thiago/src/qt/creator/src/app/main.cpp:527