Re: [Discuss-gnuradio] WX-GUI works only first time i run the grc

[Marcus Müller]

Hi Constantino,

uh, that sounds like a bug, indeed. Might be a bug in our wxgui, might be a bug in your wx library (which wxgui uses), or might be a bug in your window manager.

Now for the very harsh truth: It also sounds like a bug that I've not heard before, and it's getting a bit hard these days to find people that know how to repair wxgui stuff – in fact, we're abandoning wxgui with GNU Radio 3.8, simply because there's no one to really maintain it.

Thus, if you can, try substituting all wxgui with qtgui things, and set the build option to qt instead of wx. I found there's many advantages to the Qt sinks (higher performance, helpful middle-mouse-button menu), but there's still some things that Qt GUI has not implement – a paper roll / seismograph-style instrument, for example.

You could also try, instead of launching the generated python program directly from GRC, to simply run it from a console after generating it – after all, everything that GRC effectively does is convert a graphical representation of a flow graph into an executable python program, which sets up said flow graph and then tells GNU Radio to run.

Best regards,
Marcus

On 11/20/2016 12:28 PM, Michele Costantino wrote:

Hi!
I've a strange problem...
Just installed Ubuntu 16.04 and gnuradio flawlessy, everything seems ok
excpet a problem in gnuradio-companion.
The wxgui of any grc works only the first time i run the grc, otherwise i
get a very very small windows containing nothing.
If i reboot and re-run the grc it works (only first time).
Any idea?

Many thanks

Michele

PS: Please, let me know if i should give some others info, this is my first
post in the mailing list.

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