Re: [Jack-Devel] jack muted but plain alsa works

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DateWed, 20 Jun 2012 21:57:32 +0200
From Adrian Knoth <[hidden] at drcomp dot erfurt dot thur dot de>
To[hidden] at lists dot jackaudio dot org
In-Reply-ToJan Kohnert Re: [Jack-Devel] jack muted but plain alsa works
Follow-UpJan Kohnert Re: [Jack-Devel] jack muted but plain alsa works
On Wed, Jun 20, 2012 at 09:45:37PM +0200, Jan Kohnert wrote:

> Terminating jackd just after the last test and playing a song using 
> audacity/alsa instead of audacity/jack gave me sound. 
> Any further ideas?

The usual suspects:

   1. Does your application connect to the output ports? Please test
      with mplayer -ao jack /some/file.mp3, it's known to do the right
      thing out of the box, while audacity is known to be broken for
      most of the year.


   2. Is hw:2,0 really the correct interface? I suggest to use the
      card name from /proc/asound/cards instead:

adi@foh:~$ cat /proc/asound/cards 
 0 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf7420000 irq 55
 1 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xf7080000 irq 17
 2 [HDSPMxf1cd85   ]: HDSPM - RME RayDAT_f1cd85
                      RME RayDAT S/N 0xf1cd85 at 0xf7300000, irq 18

  $  jackd -d alsa -d hw:PCH


   3. Maybe the clock setting is wrong and jackd doesn't make any
      progress. Use $jackd -d alsa -d hw:FOO -P" to limit your jackd
      to playback only.



HTH

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