[alsa-devel] No mixers on ATI RS780 Azalia

[Takashi Iwai]

At Wed, 26 May 2010 15:47:26 +0200 (CEST),
Jan Engelhardt wrote:
> 
> 
> On Wednesday 2010-05-26 14:39, Takashi Iwai wrote:
> >> >
> >> >There are definitely for the onboard sound, not for HDMI.
> >> 
> >> The "SB" card has many more mixers (counting  10) and Windows XP also
> >> shows about that many for SB. But neither in Linux nor Windows does
> >> the SB card have any effect; I do have to turn the bars of the "HDMI"
> >> one.
> >> 
> >> Abnormal, well. It's (semi-)embedded, what did you expect.
> >
> >Wow, then is the HDMI cable connected inside the device?
> 
> Possibly. It looks quite embedded behind the casing - no recognizable
> connectors, just soldering and wiring onto headers.
> 
> >Anyway, "IEC958 Playback Switch" should be turned on for HDMI.
> >
> >	% amixer -c1 IEC958 on
> 
> Well that does nothing. As there is no PCM channel for it, there is no
> /dev/snd/pcmC1*, and thus mplayer - or any other progarm - won't even
> try to output anything.

There is /dev/snd/pcmC1D3p.  This should corresponds to HDMI output.
Try "aplay -vv -Dhdmi:1 foo.wav" or so.


Takashi