New snd_hda driver came in.

Ian FREISLICH ianf at
Tue Sep 30 10:33:10 UTC 2008

Alexander Motin wrote:
> As I can see, Speaker pin has neither muter nor volume control. In such 
> case driver usually tries to disable pin OUT control to silent it. 
> Previous driver does it same way, because of quirks. New driver should 
> do it automatically, but it doesn't because of broken codec 
> configuration (see below).
> Did I understand right that on headphone connection speaker volume is 
> decreasing? May be hardware itself just disables power amplifier on jack 
> connection, but it does not disconnects it completely, neither the 
> driver does.

The speaker volume is almost silent - it sounds like seepage from
headphones when the volume is up.

> >>> Also, when playing back, the optical port is activated.
> >> Is it good or bad? :) I have no optical ports, but my copper one seems 
> >> to be enabled only when data stream present there. At least by receiver 
> >> displays so.
> > 
> > Neither good nor bad.  Also, the built in mic has never worked, but
> > it looks promising from this boot message.
> Your BIOS writes completely broken configuration into the codec. You 
> should update it or use device hints to fix the situation.

Ok, I'll try fixing in device.hints.  It's an Apple MacBook and I
have no idea what bios it has and how to update it.

> > hdac0: 3 associations found:
> > hdac0: Association 0 (1) in:
> > hdac0:  Pin nid=11 seq=2
> mic alone, no problem, let it be.

Except that I'd actually like to be able to use the mic.


Ian Freislich

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