I run a flow graph under GRC with WX GUI widgets (sliders, FFT sink, etc) on Linux. The graph works and I can receive signals, but the GUI is not responsive (I can't move a slider, choose between radio buttons), and it gets grayed out after a few seconds. The flow graph continues to work and the graphical FFT sink continues to work: when there is a signal, I can see it on the FFT sink and I can hear it in the audio sink.
If I generate a python script from the graph and run it on the command line I get exactly the same behavior. Why is the GUI not responsive? Thanks, Sivan Toledo
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