Re: Re: ALC658 rev 0 - a problem with Rear Right

[Takashi Iwai <tiwai@suse.de>]

At Mon, 7 Mar 2005 17:39:21 +0200,
Dan Aloni wrote:
> 
> On Mon, Mar 07, 2005 at 02:10:14PM +0100, Clemens Ladisch wrote:
> > Dan Aloni wrote:
> > > The problem was introduced in the following changeset, which
> > > was supposed to cleanup things but accidently broke something.
> > >
> > > "[ALSA] Clean up and fix stereo mutes" :
> > 
> > Most AC'97 codecs have one mute bit for both channels, but some can
> > have one for each channel (that's called "stereo mute").
> > 
> > It seems the new driver enables the stereo mute bits, but then forgets
> > to unmute the second channel.
> > 
> > Does anything happen if you toggle both mute bits in alsamixer?
> 
> Using alsamixer I am unable to mute any channel by itself - it 
> always mutes or unmutes boths channels at the same time (I tried
> any possible combination of m M, < or >). However if I revert the
> changeset I am able to control each channel alone using < or > and
> there's no problem.

Hmm, are you sure that it's ALC658?  AFAIK, the codec doesn't  support
the stereo mutes (at least ALSA code doesn't enable it).


Takashi


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