2.9 Install Help

I'm a new LinuxCNC user that's trying to work on a migration off of Mach3.  I'm good with computers and programing, but not with Linux, and I'm getting very frustrated with it - just be aware...  I've used Linux off an on over the last 20 years and like the end result, but hate getting there every time...

I used the ISO and got an instance of 2.8 working on my machine with the parallel port.  I liked QTDragon and would like to try out QTDragon HD, which requires 2.9 effectively (best I can tell).  I'll also note that I'll probably try PathPilot down the road, but I want to get things worked out with QTDragon HD first.  To assist in this move, I'll be adding a Mesa 7i92H soon, but for now I'm just trying to get the software installed / working.

So, I tried upgrading my Buster / 2.8 install to 2.9, and that failed miserably.  I had over a hundred dependencies that I couldn't figure out how to resolve, so I started looking for other options.  Here on the forum, I found the sticky for installing 2.9 on Mint (forum.linuxcnc.org/9-installing-linuxcnc...ter-on-linux-mint-21), so I've tried that.

I have Mint installed, and LinuxCNC 2.9 works in Axis.  But I can't get it to work with QTDragon (any of them).  I first had errors that PYQT5 was missing, so I got that installed (sudo apt-get install python3-pyqt5).

Now, when I run LinuxCNC with any of the QTDragons, I get this error:

Traceback (most recent call last):File "/usr/bin/qtvcp", line 511, in <module>APP = QTVCP()File "/usr/bin/qtvcp", line 133, in __init__from qtvcp import qt_makepins, qt_makeguiFile "/usr/lib/python3/dist-packages/qtvcp/qt_makepins.py", line 22, in <module>from qtvcp.widgets.screen_options import ScreenOptionsFile "/usr/lib/python3/dist-packages/qtvcp/widgets/screen_options.py", line 24, in <module>from qtvcp.lib.message import MessageFile "/usr/lib/python3/dist-packages/qtvcp/lib/message.py", line 5, in <module>from qtvcp.widgets.dialog_widget import LcncDialogFile "/usr/lib/python3/dist-packages/qtvcp/widgets/dialog_widget.py", line 32, in <module>from qtvcp.widgets.macro_widget import MacroTabFile "/usr/lib/python3/dist-packages/qtvcp/widgets/macro_widget.py", line 86, in <module>class CustomSVG(QtSvg.QSvgWidget):NameError: name 'QtSvg' is not defined

When I hit "Retry", I then get the normal LinuxCNC Errors window:

Print file information:
RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.9.0~pre0
Machine configuration directory is '/home/oem/linuxcnc/configs/sim.qtvcp_screens.qtdragon'
Machine configuration file is 'qtdragon.ini'
INIFILE=/home/oem/linuxcnc/configs/sim.qtvcp_screens.qtdragon/qtdragon.ini
VERSION=1.1
PARAMETER_FILE=qtdragon.var
TPMOD=
HOMEMOD=
TASK=milltask
HALUI=halui
DISPLAY=qtvcp qtdragon
COORDINATES=XYZ
KINEMATICS=trivkins coordinates=XYZ
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting HAL User Interface program: halui
linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod
Found file(REL): ./core_sim.hal
Found file(lib): /usr/share/linuxcnc/hallib/simulated_home.hal
Starting TASK program: milltask
Starting DISPLAY program: qtvcp
Shutting down and cleaning up LinuxCNC...
task: 7548 cycles, min=0.000021, max=0.014070, avg=0.010036, 0 latency excursions (> 10x expected cycle time of 0.010000s)
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments

Debug file information:
Note: Using POSIX realtime
[QTvcp][[31mERROR[0m]  Qtvcp Error with loading webView - is python3-pyqt5.qtwebengine installed? (qtvcp:29)
[QTvcp.QTVCP.WIDGETS.MACRO_WIDGET][[41mCRITICAL[0m]  Qtvcp error with macro_widget - is package python3-pyqt5.qtsvg installed? (macro_widget.py:44)
[QTvcp][[41mCRITICAL[0m]  Retry 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/bin/qtvcp", line 511, in <module>
    APP = QTVCP()
  File "/usr/bin/qtvcp", line 133, in __init__
    from qtvcp import qt_makepins, qt_makegui
  File "/usr/lib/python3/dist-packages/qtvcp/qt_makepins.py", line 22, in <module>
    from qtvcp.widgets.screen_options import ScreenOptions
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/screen_options.py", line 24, in <module>
    from qtvcp.lib.message import Message
  File "/usr/lib/python3/dist-packages/qtvcp/lib/message.py", line 5, in <module>
    from qtvcp.widgets.dialog_widget import LcncDialog
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/dialog_widget.py", line 32, in <module>
    from qtvcp.widgets.macro_widget import MacroTab
  File "/usr/lib/python3/dist-packages/qtvcp/widgets/macro_widget.py", line 86, in <module>
    class CustomSVG(QtSvg.QSvgWidget):
NameError: name 'QtSvg' is not defined

 (qtvcp:507)
21020
21054
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime

I've googled as best I know how and haven't found any solutions related to LinuxCNC.  I'm sure it's something simple, but I don't know how to fix it.  Hopefully someone here does...

Thanks,

Danny






 

Well, made progress based on your suggestion, so thanks for that.

For newbies like me, what I did was:

cd /usr/lib/python3/dist-packages/qtvcp/designer/

sudo bash install_script

When prompted, I chose option #3 for package install (I guessed).

The base QTDragon now appears to work. But when I choose QTDragon HD, I get the QTVCP error window once it's loaded:

Traceback (most recent call last):File "/usr/lib/python3/dist-packages/qtvcp/widgets/round_gauge.py", line 54, in paintEventself.draw_zones(painter, event, w)File "/usr/lib/python3/dist-packages/qtvcp/widgets/round_gauge.py", line 84, in draw_zonesrect.setSize(QSize(w/2, w/2))TypeError: arguments did not match any overloaded call:QSize(): too many argumentsQSize(int, int): argument 1 has unexpected type 'float'QSize(QSize): argument 1 has unexpected type 'float'

And after I hit "Abort" ("Retry" doesn't change anything - the error pops right back up) then I get the normal Linux CNC error box that contains:

Print file information:
RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.9.0~pre0
Machine configuration directory is '/home/oem/linuxcnc/configs/sim.qtvcp_screens.qtdragon'
Machine configuration file is 'qtdragon_hd.ini'
INIFILE=/home/oem/linuxcnc/configs/sim.qtvcp_screens.qtdragon/qtdragon_hd.ini
VERSION=1.1
PARAMETER_FILE=qtdragon.var
TPMOD=
HOMEMOD=
TASK=milltask
HALUI=halui
DISPLAY=qtvcp qtdragon_hd
COORDINATES=XYZ
KINEMATICS=trivkins coordinates=XYZ
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting HAL User Interface program: halui
linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod
Found file(REL): ./core_sim.hal
Found file(lib): /usr/share/linuxcnc/hallib/simulated_home.hal
Starting TASK program: milltask
Starting DISPLAY program: qtvcp
Shutting down and cleaning up LinuxCNC...
task: 4270 cycles, min=0.000019, max=0.010305, avg=0.009994, 0 latency excursions (> 10x expected cycle time of 0.010000s)
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments

Debug file information:
Note: Using POSIX realtime
[QTvcp.QTVCP.LIB.QT_PDF.PDFVIEWER][[33mWARNING[0m] PDFViwer - Is python3-poppler-qt5 installed? (PDFViewer.py:15)
[QTvcp.QTVCP.LIB.QT_NGCGUI.NGCGUI][[34mDEBUG[0m] UI Filename: /usr/lib/python3/dist-packages/qtvcp/lib/qt_ngcgui/ngcgui.ui (ngcgui.py:458)
[QTvcp.QTVCP.LIB.QT_NGCGUI.NGCGUI][[34mDEBUG[0m] UI Filename: /usr/lib/python3/dist-packages/qtvcp/lib/qt_ngcgui/ngcgui.ui Didn't find a path NGCGUI files (ngcgui.py:485)
QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?
QWidget::repaint: Recursive repaint detected
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?
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?
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?
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?
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?
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?
QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?
[QTvcp][[41mCRITICAL[0m] Retry 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/round_gauge.py", line 54, in paintEvent
self.draw_zones(painter, event, w)
File "/usr/lib/python3/dist-packages/qtvcp/widgets/round_gauge.py", line 84, in draw_zones
rect.setSize(QSize(w/2, w/2))
TypeError: arguments did not match any overloaded call:
QSize(): too many arguments
QSize(int, int): argument 1 has unexpected type 'float'
QSize(QSize): argument 1 has unexpected type 'float'

(qtvcp:507)
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?
QWidget::repaint: Recursive repaint detected
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?
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][[41mCRITICAL[0m] Retry 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/round_gauge.py", line 54, in paintEvent
self.draw_zones(painter, event, w)
File "/usr/lib/python3/dist-packages/qtvcp/widgets/round_gauge.py", line 84, in draw_zones
rect.setSize(QSize(w/2, w/2))
TypeError: arguments did not match any overloaded call:
QSize(): too many arguments
QSize(int, int): argument 1 has unexpected type 'float'
QSize(QSize): argument 1 has unexpected type 'float'

(qtvcp:507)
QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?
[QTvcp][[41mCRITICAL[0m] 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/round_gauge.py", line 54, in paintEvent
self.draw_zones(painter, event, w)
File "/usr/lib/python3/dist-packages/qtvcp/widgets/round_gauge.py", line 84, in draw_zones
rect.setSize(QSize(w/2, w/2))
TypeError: arguments did not match any overloaded call:
QSize(): too many arguments
QSize(int, int): argument 1 has unexpected type 'float'
QSize(QSize): argument 1 has unexpected type 'float'

(qtvcp:503)
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?
/usr/bin/linuxcnc: line 963: 4227 Segmentation fault (core dumped) $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS
4189
4223
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime

I haven't researched this one yet, but Ifigured I'd post my progress here for future reference...

Danny

 

OK, I'm stuck. I've searched and everything associated with these errors seems to be programming bugs and nothing related to LinuxCNC. Anyone have any ideas?

Danny

This looks like it is because the latest pyqt library changed function signature types.

can you;
open a terminal and type:
python3

then:

from PyQt5.QtCore import QT_VERSION_STR, PYQT_VERSION_STR
print("Qt: v", QT_VERSION_STR, "\tPyQt: v", PYQT_VERSION_STR)

And post what it prints.

Qt: v 5.15.3 PyQt: v 5.15.6

Danny

Danny.
I'm 99% sure that version has the changes that break out code.
Unfortunately I don't have a system that uses the new library so can't current test.
I have fixed the errors as best I can as they are reported.

I see errors from round_gauge in your post so will look at he code and see if I can fix it.

Ok, good to know it's not something I did wrong.

Is there a work-around? Can I downgrade something somehow for instance?

Thanks for the help,

Danny

I pushed a fix for that particular error.
So you could try checking for linuxcnc updates.
I know no way to downgrade the pyqt version on the system.
Only by using an older distribution.