[mythtv-users] Wierd audo issue on new install

Phil Wild phil at holobyte.com.au
Sun May 11 14:07:12 UTC 2014


On 11 May 2014 21:21, John Marshall <mythtv at marshallparty.org> wrote:
> On 5/11/2014 2:31 AM, Phil Wild wrote:
>>
>> After my issues last week I've rolled right back to mythbuntu 12.04.
>> Everything is almost back to normal but I still have some wierd audio
>> issue.
>>
>> mythtv is actually working fine (audio works), but audio from any
>> other application is not (vlc, plex etc). I can only assume the
>> problem relates to the "default" audio setting.
>
>
> I don't know if it's the same issue as yours, but I sometimes find my audio
> is muted after a reboot (or maybe just on a new kernel).  Myth seems to
> ignore "mute", but other apps have no sound.  I have to use pavucontrol and
> un-mute the device.
>
Thanks
I have checked with alsamixer and there are no muted channels/devices.
I get sound if I run the command

    speaker-test -c6 -D plughw:0,3
 or
    speaker-test -c6 -D hw:0,3
 or
    speaker-test -c6 -D hdmi

but not when I run

    speaker-test -c6
 or
    speaker-test -c6 -D default

Yet if I su to root, it works. If I try any user other than root, it
fails. No errors, the sound just isn't directed to the correct device

This has me stumped. Two nights past 3am now trying to get to the bottom of it.

No errors but no sound:

phil at echo:~$ speaker-test -c6 -D default

speaker-test 1.0.25

Playback device is default
Stream parameters are 48000Hz, S16_LE, 6 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 32 to 349525
Period size range from 10 to 116509
Using max buffer size 349524
Periods = 4
was set period_size = 87381
was set buffer_size = 349524
 0 - Front Left
 4 - Center
 1 - Front Right
 3 - Rear Right
 2 - Rear Left
 5 - LFE
^C

and asound.conf looks like this at the moment

phil at echo:~$ cat /etc/asound.conf
 pcm.!default {
      type plug
      slave.pcm {
              type hw
              card 0
              device 3
      }
}

 pcm.!hdmi {
      type plug
      slave.pcm {
              type hw
              card 0
              device 3
      }
}

pcm.hdmi-remap {
       type route
       slave.pcm hdmi
       ttable.0.0 1
       ttable.1.1 1
       ttable.2.4 1
       ttable.3.5 1
       ttable.4.2 1
       ttable.5.3 1
       ttable.6.6 1
       ttable.7.7 1
}

#pcm.!default {
# type plug
# slave.pcm hdmi-remap
#}


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