[Discuss-gnuradio] alsa problem

[Andreas Ladanyi]

Hi together,

i am using grc 3.7.6.1. The system is odroid with ubuntu 14. I tested 
the alsa system with aplay and the sound works.

When i start my project on odroid i get the following error message.  On 
my desktop pc with grc 3.7.2.1 / ubuntu 14 the grc alsa works.


INFO: Audio sink arch: alsa
ERROR: [default]: snd_pcm_hw_params failed: Invalid argument
Traceback (most recent call last):
  File "/home/odroid/gr-rds-master_rds2/apps/rds_rx.py", line 421, in 
<module>
    tb.Start(True)
  File 
"/usr/local/lib/python2.7/dist-packages/grc_gnuradio/wxgui/top_block_gui.py", 
line 73, in Start
    self.start()
  File 
"/usr/local/lib/python2.7/dist-packages/gnuradio/gr/top_block.py", line 
106, in start
    top_block_start_unlocked(self._impl, max_noutput_items)
  File 
"/usr/local/lib/python2.7/dist-packages/gnuradio/gr/runtime_swig.py", 
line 4742, in top_block_start_unlocked
    return _runtime_swig.top_block_start_unlocked(*args, **kwargs)
RuntimeError: check topology failed on audio_alsa_sink(54) using 
ninputs=2, noutputs=0


Andy ideas ? Thanks in advance.

cheers,
Andy