Re: [Discuss-gnuradio] Need help with CtrlPort Performance Monitor

[CEL]

Hi Jim,

though the crash here definitely is different from what you witness in
GRC, I'd chalk it up to either a bug in Matplotlib (a python graph
drawing library) or our code. 
https://stackoverflow.com/a/17935694/4433386
might be an indication that we're the ones doing something wrong.

I don't have the bandwidth to look at this today, but could you open a
bug report on https://github.com/gnuradio/gnuradio/issues with the the
info that you run gr-perf-monitorx manually, and got that backtrace and
crash, and assign it to me? That way, I don't lose track of it.

Thanks!
Marcus

On Sun, 2018-07-15 at 21:47 -0700, Jim Larsen wrote:
> Hi Marcus,
> 
> Thank you for your patience with my CtrlPort Performance Monitor
> problems. I have been distracted by other projects and finally had
> time to try your suggestion.
> 
> > On Jul 4, 2018, at 1:47 AM, Müller, Marcus (CEL) <address@hidden>
> > wrote:
> > 
> > hm... 
> > no, but if `gr-ctrlport-monitor` works, does running `gr-perf-
> > monitorx`? Do you still get the same blank display, are there any
> > warnings/errors printed?
> 
> Here is the terminal output from running gr-perf-monitorx:
> 
> address@hidden:~/gnuradio/prefix/perfmon$ gr-perf-monitorx vmware 46263
> QPaintDevice: Cannot destroy paint device that is being painted
> Traceback (most recent call last):
>   File "/home/jim/.local/lib/python2.7/site-
> packages/matplotlib/backends/backend_qt5agg.py", line 72, in
> paintEvent
>     painter.drawImage(origin / self._dpi_ratio, qimage)
>   File "/home/jim/.local/lib/python2.7/site-
> packages/matplotlib/backends/backend_qt5.py", line 273, in _dpi_ratio
>     return self.devicePixelRatio() or 1
> RuntimeError: wrapped C/C++ object of type FigureCanvasQTAgg has been
> deleted
> Segmentation fault (core dumped)
> 
> Does this give you any ideas about what is causing the blank
> Performance Monitor graph display?
> 
> Regards,
> 
> Jim
> 
> 
>

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