qtvcp issues

Yesterday I got the designer and linuxcnc working just fine on Mint 19.1 and could control all machine functions. Before this I could open the designer without a problem but after running linucnc for sever hours and then opening the designer I get the below message and opening the designer fails. this does not make much sense since none of the files listed in the error message were changed by me.

cnc@cnc1:~/qtvcp-dev$ . ./scripts/rip-environment
cnc@cnc1:~/qtvcp-dev$ designer -qt=5
qt5ct: using qt5ct plugin
qt5ct: D-Bus global menu: no
Traceback (most recent call last):
File "/usr/lib/x86_64-linux-gnu/qt5/plugins/designer/python/qtvcp_plugin.py", line 22, in <module>
from qtvcp.plugins.simplewidgets_plugin import *
File "/home/cnc/qtvcp-dev/lib/python/qtvcp/plugins/simplewidgets_plugin.py", line 5, in <module>
from qtvcp.widgets.simple_widgets import PushButton
File "/home/cnc/qtvcp-dev/lib/python/qtvcp/widgets/simple_widgets.py", line 17, in <module>
from qtvcp.widgets.widget_baseclass import _HalWidgetBase, _HalToggleBase, _HalSensitiveBase
File "/home/cnc/qtvcp-dev/lib/python/qtvcp/widgets/widget_baseclass.py", line 19, in <module>
import hal
File "/home/cnc/qtvcp-dev/lib/python/hal.py", line 30, in <module>
import _hal
ImportError: /home/cnc/qtvcp-dev/lib/python/_hal.so: undefined symbol: _Py_ZeroStruct
Segmentation fault (core dumped)
cnc@cnc1:~/qtvcp-dev$

undefined symbol: _Py_ZeroStruct suggests a python version problem.

Does designer have a libpyqt5.so as well as the libpyqt5_py2.so?

If so and you don't use python3 widgets I would get rid of it and see if the problem goes away.

Chris M

Error message should be more friendly now.

I was just able to get QT5 reinstalled and back to normal. On this install using QT offline installer (1.5 GB) the gui buttons look a lot better than they did my original install of QT on Mint 19.1. That one I had installed from source.

I don't know where all these G codes are coming from:




this is all I find in my .ini file.

RS274NGC_STARTUP_CODE = G17 G20 G40 G43H0 G54 G64P0.005 G80 G90 G94 G97 M5 M9

Not sure which ones you think are wrong, but it's probably because some are default even if you don't set them eg G90.1/G91.1. - looks like G91.1 is default.

Chris M

I have had to drop off my x1mill project for a while due to other commitments. My latest work is available from github but is still in need of changes. github.com/auto-mation-assist/x1Mill_branch