@DESKTOP-9FIBCI1:~/linuxcnc/configs/sim.qtvcp_screens.qtdragon$ linuxcnc qtdragon.ini 
LINUXCNC - 2.9.0~pre0
Machine configuration directory is '/home/xxx/linuxcnc/configs/sim.qtvcp_screens.qtdragon'
Machine configuration file is 'qtdragon.ini'
Starting LinuxCNC...
linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod
Note: Using POSIX realtime
Found file(REL): ./core_sim.hal
Found file(lib): /usr/share/linuxcnc/hallib/simulated_home.hal
[QTvcp][INFO]  Logging to "/home/xxx/linuxcnc/configs/sim.qtvcp_screens.qtdragon/qtdragon.log" (logger.py:102)
[QTvcp.QTVCP.QT_PSTAT][INFO]  Using DEFAULT handler file path: /usr/share/qtvcp/screens/qtdragon/qtdragon_handler.py (qt_pstat.py:105)
[QTvcp.QTVCP.QT_PSTAT][INFO]  Using DEFAULT ui file from /usr/share/qtvcp/screens/qtdragon/qtdragon.ui (qt_pstat.py:126)
[QTvcp.QTVCP.QT_PSTAT][INFO]  Using DEFAULT qss file from /usr/share/qtvcp/screens/qtdragon/qtdragon.qss (qt_pstat.py:158)
[QTvcp.QTVCP.QT_PSTAT][INFO]  Using DEFAULT qrc file from /usr/share/qtvcp/screens/qtdragon/qtdragon.qrc (qt_pstat.py:181)
[QTvcp.QTVCP.QT_PSTAT][INFO]  Using LOCAL resources.py file from /home/xxx/linuxcnc/configs/sim.qtvcp_screens.qtdragon/qtvcp/screens/qtdragon/resources.py (qt_pstat.py:200)
[QTvcp.QTVCP.QT_PSTAT][INFO]  Using no translations. Default system locale is: nl (qt_pstat.py:224)
[QTvcp][INFO]  Building A Linuxcnc Main Screen with Python 3 (qtvcp:162)
[QTvcp][INFO]  No handler file specified on command line (qtvcp:170)
[QTvcp][INFO]  No HAL component base name specified on command line using: qtdragon (qtvcp:201)
[QTvcp.QTVCP.QT_MAKEGUI][INFO]  Qsettings file path: /home/xxx/.config/QtVcp/qtdragon.conf (qt_makegui.py:99)
[QTvcp.QTVCP.QT_MAKEGUI][INFO]  Imported resources.py filed: /home/xxx/linuxcnc/configs/sim.qtvcp_screens.qtdragon/qtvcp/screens/qtdragon/resources.py (qt_makegui.py:190)
[QTvcp.QTVCP.WIDGETS.WIDGET_BASECLASS][WARNING]  No objectName for HAL pin: <qtvcp.widgets.dialog_widget.LcncDialog object at 0x7f89bba36b00> (widget_baseclass.py:59)
[QTvcp.QTVCP.WIDGETS.WIDGET_BASECLASS][WARNING]  No objectName for HAL pin: <qtvcp.widgets.dialog_widget.LcncDialog object at 0x7f89bba36cb0> (widget_baseclass.py:59)
[QTvcp.QTVCP.WIDGETS.WIDGET_BASECLASS][WARNING]  No objectName for HAL pin: <qtvcp.widgets.dialog_widget.LcncDialog object at 0x7f89bba37010> (widget_baseclass.py:59)
[QTvcp.QTVCP.WIDGETS.STATUS_LABEL][WARNING]  lbl_maxv_percent : no option recognised (status_label.py:158)
[QTvcp.QTVCP.WIDGETS.STATUS_LABEL][WARNING]  lbl_runtime : no option recognised (status_label.py:158)
[QTvcp.QTDRAGON_HANDLER][INFO]  Using Basic Probe (qtdragon_handler.py:298)
[QTvcp.QTVCP.QT_MAKEGUI][INFO]  no Handler Override file at: /home/xxx/linuxcnc/configs/sim.qtvcp_screens.qtdragon/.qtdragonrc (qt_makegui.py:360)
Could not create pixmap from :/images/images/qtdragon/images/brushed_metal.png
Could not create pixmap from :/images/images/qtdragon/images/brushed_metal.png
Could not create pixmap from :/images/images/qtdragon/images/brushed_metal.png
[QTvcp][INFO]  postgui filename: ['qtdragon_postgui.hal'] (qtvcp:409)
[QTvcp][INFO]  postgui commands: None (qtvcp:420)
[QTvcp][INFO]  Preference path: /home/xxx/linuxcnc/configs/sim.qtvcp_screens.qtdragon/qtdragon.pref (qtvcp:399)
QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?
QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?
QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?
QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?
[QTvcp][CRITICAL]  Aborted from Error Dialog
 Qtvcp encountered an error.  The following information may be useful in troubleshooting:
LinuxCNC Version  : 2.9.0~pre0

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/simple_widgets.py", line 556, in paintEvent
    self.paintIndicator()
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/simple_widgets.py", line 598, in paintIndicator
    p.drawEllipse(x, y, self._diameter - 1, self._diameter - 1)
TypeError: arguments did not match any overloaded call:
  drawEllipse(self, QRectF): argument 1 has unexpected type 'float'
  drawEllipse(self, QRect): argument 1 has unexpected type 'float'
  drawEllipse(self, int, int, int, int): argument 1 has unexpected type 'float'
  drawEllipse(self, Union[QPointF, QPoint], float, float): argument 1 has unexpected type 'float'
  drawEllipse(self, QPoint, int, int): argument 1 has unexpected type 'float'

 (qtvcp:482)
QPaintDevice: Cannot destroy paint device that is being painted
/usr/bin/linuxcnc: regel 963: 12754 Segmentatiefout         $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS
Shutting down and cleaning up LinuxCNC...
task: 725 cycles, min=0.000008, max=0.013801, avg=0.009619, 0 latency excursions (> 10x expected cycle time of 0.010000s)
Note: Using POSIX realtime
LinuxCNC terminated with an error.  You can find more information in the log:
    /home/xxx/linuxcnc_debug.txt
and
    /home/xxx/linuxcnc_print.txt
as well as in the output of the shell command 'dmesg' and in the terminal