[Discuss-gnuradio] ICE1712 and ALSA sink

[Alex DEKKER]

Built GNUradio from git on Debian Testing AMD64 this afternoon, and 
intending to use it with a Funcube Dongle and gr-fcd. I am having some 
difficulty with the ALSA sink and an ICE1712 [M-Audio 2496] sound card. 
I created a very simple flow graph with a sine wave Signal Source 
straight in to an Audio Sink. When I try to execute it, I get:

Traceback (most recent call last):
  File "/home/alex/downloads/radio/gr-fcd/apps/top_block.py", line 118, 
in <module>
    tb.Run(True)
  File 
"/usr/local/lib/python2.6/dist-packages/grc_gnuradio/wxgui/top_block_gui.py", 
line 72, in Run
    if start: self.start()
  File 
"/usr/local/lib/python2.6/dist-packages/gnuradio/gr/top_block.py", line 
97, in start
    self._tb.start()
  File 
"/usr/local/lib/python2.6/dist-packages/gnuradio/gr/gnuradio_core_runtime.py", 
line 1480, in start
    return _gnuradio_core_runtime.gr_top_block_sptr_start(self)
RuntimeError: audio_alsa_sink(3): insufficient connected input ports 
(10 needed, 1 connected)

> > > Done

I have connected an old USB sound card, which becomes hw:2,0 and 
pointed it at that, and it works fine. So there seems to be some kind of 
incompatibility between gnuradio and this sound card. Where is the best 
place to start looking into what the issue might be?

alexd