[alsa-devel] hda-intel on macbook5, 1 (was: lockdep warning on 2.6.29-rc1 with pulseaudio)

[Takashi Iwai]

At Wed, 14 Jan 2009 18:22:35 +0100,
Johannes Berg wrote:
> 
> On Wed, 2009-01-14 at 18:10 +0100, Takashi Iwai wrote:
> 
> > Well, first off, you need to figure out the pin mapping, which
> > pin-widget NID corresponding to which actual I/O.
> > You'd better start from the output jacks than speaker outputs since
> > speaker outputs often require the special handling like GPIO and/or
> > EAPD.
> > 
> > With hda-verb, you can issue all commands, so free to change the amp
> > volume and reconnect the widgets.  Jaroslav's hda-analyzer provides a
> > better interface (GUI) for such a purpose.
> > 
> > See Documentation/sounds/alsa/HD-Audio.txt in the latest kernel git
> > tree.
> 
> Fun, ok.
> 
> > > > Or do they have any external information file like on Windows *.ini?
> > > 
> > > Yes, Info.plist files, but none seem to contain any useful information,
> > > what sort of information would you be looking for?
> > 
> > There could be some list of pin ids and flags or sequences.
> > At least, *.INI contains a sort of things like that.
> 
> There's some sort of binary information.
> 
> Actually, I played with things a little more, and dug a little deeper
> into what the ubuntu forums say, and it turned out that I made a stupid
> mistake, I typoed mbp3 as mpb3 when testing it.
> 
> Now, I actually get sound with model=mbp3, but the controls are all
> wrong, e.g. line-out controls the built-in speakers, and the speaker
> on/off control doesn't do anything to the speakers. Also, I need to turn
> up the volumes pretty much to max to get any output at all, which seems
> a little strange. I'll try to figure out what the controls really are
> and see if I can make a new model that links it all up correctly.

Ah, good to hear.  Then we have really a better hope now.

> Anyway, sorry for the bother and thanks for all the help.
> 
> In other news, I've got a new aoa patch that actually works on the older
> models, but so far doesn't fix the quiet sound problem either, I'm still
> working with Andreas on that. And I'm also working with somebody else to
> get optical output on topaz-based machines.

Great.  I can merge 2.6.30 materials at any time.  So feel free to
submit patches.


thanks,

Takashi