Re: Jack & pulse...knickers in a twist.

Bill Purvis <bill@xxxxxxxxx> · Wed, 6 Jun 2018 15:22:27 +0100



    On 06/06/18 14:12, Mac wrote:

    
          ....

            
            Apparently not. I tried "jack_control dps device
              surround71:PCH,0" and still got playback_1,_2. (There are
              also surround21, 41, etc. none of those changed anything
              either.)
            As for hdajackretask, when I tried to "Apply now" I got
              a device busy message. I didn't try "Install boot
              override".

            
              In my case the real answer is I don't know. I tend to
              disable any internal audio device to clear up one more
              thing that may interfere with "real audio".

              
    I use qjackctl, so I'm not that familiar with the command line
    interface.

    In the Qjackctl settings panel, under advanced, it shows the
    'system' output device,

    and also a field for number of channels. I had an 8-channel DAC
    connected a while back

    and setting channels=8 and restarting produced 8 system outputs. So
    it is possible.

    
    Looking at web pages for jack_control, I'd suggest trying:

    
        jack_control dps device surround71LPCH,0

        jack_control dps channels 7

    
    might be the answer?

    Bill

    -- 
+----------------------------------------+
| Bill Purvis                            |
| email: bill@xxxxxxxxx                  |
+----------------------------------------+

  
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