Re: problems with the mixer (fwd)

[Takashi Iwai <tiwai@suse.de>]

At Sat, 8 May 2004 16:37:06 +0200,
Aner Gusic wrote:
> 
> Hi!
> 
> I didn't get any answer on alsa-user list so I try here.
> 
> 
> I have a Hoontech NX card with outputs for front and rear speakers.
> Volume settings for these I would like to set independently of each
> other, and this worked just fine while I was running ALSA 0.5.x.
> However, a couple of days ago I upgraded to ALSA 1.0.3.
> 
> Now, there are two possibilities for controling volume settings on
> speakers, one with "Sigmatel 4-speaker stereo" off and another with
> this switch turned on.
> 
> The second posibility (4-s s on), has following setup:
>   - "Master" controls front speakers
>   - "PCM" controls both front and rear speakers
> 
> Sigmatel 4-speaker stereo off is almost what I want:
>   - "Master", "PCM", "PCM Front" control front speakers
>   - "Surrownd", "PCM Reverb" control rear speakers
> 
> However, PCM Front and PCM Reverb are set to 100% resp. 0% each time
> /dev/dsp is opened.  This works perfectly for front speakers since
> they can be controled with Master or PCM controls, but rear speakers
> are muted each time a new song starts.
> 
> Is this a bug? (I hope it is.)  Is it a known bug, or is it some kind
> of feature I can hope to be able to go around in future release of
> trident driver?

you can use "front", "rear" and "surround40" PCMs.
then the volumes and the route should be initialized properly.


--
Takashi Iwai <tiwai@suse.de>		ALSA Developer - www.alsa-project.org


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