Re: CMI8768 patch

[Takashi Iwai <tiwai@suse.de>]

At Thu, 24 Feb 2005 18:42:28 +0000,
Sergio Monteiro Basto wrote:
> 
> On Thu, 2005-02-24 at 11:30 +0100, Takashi Iwai wrote:
> > At Thu, 24 Feb 2005 04:20:22 +0000,
> > Sergio Monteiro Basto wrote:
> > > 
> > > 
> > > About my : C-Media CMI9761A
> > > 
> > > With this change above and compile ALSA from latest CVS, PCM and Master
> > > volume appears !, PCM works great but master doesn't do nothing ! 
> > 
> > It's a known problem.  I readded Master volume because of the report
> > that it affects the input loop-back.  If it's not, we should remove
> > it.
> 
> How I remove it ? for testing and give you a feed-back. 

Enable the commented out part again in pci/ac97/ac97_patch.c:2043

	ac97->flags |= /*AC97_HAS_NO_MASTER_VOL |*/ AC97_HAS_NO_PCM_VOL;

to 

	ac97->flags |= AC97_HAS_NO_MASTER_VOL | AC97_HAS_NO_PCM_VOL;


The _only_ question is, whether the Master volume really does nothing,
or has _any_ role.  As mentioned, if it's really a dummy control, we
should rather remove it to avoid confusion.


Takashi


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