[alsa-devel] hda-intel on macbook: unknown model for ACL882

Steffen Schulz pepe_ml at gmx.net
Sat Jul 7 20:48:57 CEST 2007

Hi all, hi Takashi

someone at Ubuntuforums found some more effects with model=w2jc, I
thought the info might help you to provide an update.

When I switch from 2ch to 6ch, the mic is ignored as input and I can
hear whatever is playing through the front speakers also through the
headphones when plugged to the *input*. Headphone output is still mute
(or very VERY quiet).

It is however not possible to mute or lower the speaker output without
affecting the headphone volume at the input plug.

Switching Input sources has no effect and I can't speak for SPDIF,
except the output plug's light goes on..

I can't produce any of this behaviour with model=macpro or auto.

Please ask if you need more information.


On 070704 at 19:47, Steffen Schulz wrote:
> On 070704 at 19:00, Takashi Iwai wrote:
> > Which ALSA version did you try?  Did you try model=macpro with the
> > latest version?
> I tried alsa from vanilla 2.6.22-rc6 as well as the drivers from recent
> rsync/svn. I compiled alsa-driver with cards=hda-intel and got the same
> results as with the stock kernel drivers.
> I just rsync'ed again in case something changed the last 1-2 days.
> I tried all the 882-models listet in the Documentation, including
> macpro. Only with w2jc the volume levels are okay.
> I get a working mic and headphones but both VERY quiet with model=auto.
> PCM and Front have to be at 100% for me to actually hear something.
> I get nothing from the speakers, but maybe it's to quiet.
> Same with model=macpro.
> With model=w2jc, PCM and Front control the Speakers 'correctly', Mic
> Boost and Mic work too, but there are headphones for this model.
> > If it still doesn't work, attach the contents of
> > /proc/asound/card0/codec#* files, please.
> Attached is codec#0 for model=macpro and w2jc.
> /steffen

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