[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] alsa problem

From: Tom Rondeau
Subject: Re: [Discuss-gnuradio] alsa problem
Date: Mon, 25 May 2015 11:05:33 -0400

On Mon, May 25, 2015 at 6:15 AM, Andreas Ladanyi <address@hidden> wrote:
Hi together,

i am using grc 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 / 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>
  File "/usr/local/lib/python2.7/dist-packages/grc_gnuradio/wxgui/top_block_gui.py", line 73, in 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.


It would be helpful here to see the flowgraph you're working on. The error is related to the blocks and how you connected them up. The audio sink, in this case, is having a problem with the input connections you're giving it.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]