[pulseaudio-discuss] PulseAudio doesn't seem to find my HDMI audio card

[Colin Guthrie]

'Twas brillig, and Marie-Noëlle Augendre at 10/06/11 10:07 did gyre and
gimble:
>     sudo fuser -v /dev/snd/pcm*
> 
> 
>                      UTIL.       PID ACCÈS  COMMANDE
> /dev/snd/pcmC0D0p:   marie-noelle   3119 F...m plugin-containe
> /dev/snd/pcmC1D3p:   marie-noelle   2375 F...m pulseaudio

OK, so pcmC0 is your built in card and pcmC1 is the HDMI

As you can see PA has the HDMI card open and "plugin-container" (which
is firefox's plugin sandbox) has your built in card open. THis means
that firefox (or rather it's plugins - typically flash) has opened the
sound card hardware directly. This is bad and is a misconfiguration. It
should be opening the alsa-default device which should in turn be using PA.

If you do:
 aplay /usr/share/sounds/alsa/Front_Center.wav

(assuming that file exists which it should if you have speaker-test
installed)

While you run the above command, (which will only stay running for a
little while so have two terminals open and be prepared to type the
other command quickly) what does the "sudo fuser -v /dev/snd/pcm*" say?

You might need to stop firefox.


If you find that aplay is now using pcmC0D0p, then your alsa
configuration is broken. If it uses PulseAudio, then you should either:
a) hear the sound, or b) aplay should show up in "pacmd ls" if run while
aplay is running.

If it does show up in pacmd ls output, please attach it here.

Col




-- 

Colin Guthrie
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http://colin.guthr.ie/

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