[alsa-devel] hda_intel: SPDIF not detected on Asus P7P55D PRO

[Takashi Iwai]

At Mon, 21 Sep 2009 22:54:33 +0900,
Harald Welte wrote:
> 
> Hi Takashi,
> 
> On Mon, Sep 21, 2009 at 03:38:03PM +0200, Takashi Iwai wrote:
> > At Fri, 18 Sep 2009 08:38:26 -0600,
> > Robert Hancock wrote:
> > > 
> > > On Fri, Sep 18, 2009 at 12:18 AM, Takashi Iwai <tiwai at suse.de> wrote:
> > > > At Thu, 17 Sep 2009 21:38:04 -0600,
> > > > Robert Hancock wrote:
> > > >>
> > > >> I just set up a new system running an Asus P7P55D PRO motherboard. It
> > > >> looks like this uses the VIA VT1828S codec. The analog output seems to
> > > >> work but the SPDIF output isn't recognized. Originally tried 2.6.30.5,
> > > >> but Linus' current git doesn't seem any different. The device only gets
> > > >> detected as HDA Generic, which, from my reading of the code, ignores
> > > >> SPDIF outputs. I tried hacking patch_via.c to add the codec ID to match
> > > >> existing types like VT1708S and VT1702, each of those got the SPDIF
> > > >> output to show up, but no output showed up on the receiver, and also the
> > > >> analog output then stopped being recognized (looks like some node IDs
> > > >> don't match).
> > > >
> > > > Could you give alsa-info.sh output (run with --no-upload option)?
> > > 
> > > Here it is:
> > 
> > Thanks.  This looks really incompatible with the existing VIA codecs.
> > So, no wonder that you didn't get it working by a simple hack.
> 
> Yes, I agree.
> 
> > Harald, do you know anyone who can help the development for this new
> > codec chip?
> 
> VIA already has code for supporting this chip, and they were about to support
> one big monster patch (15000 lines of code) containing what looks like several
> months of code for several codecs.

OK, good to know.

>  I've asked them to split this up and create
> and submit per-feature patches.

Ah, thanks, that'll be really helpful!

> I don't know how long it will take them to do this.  Maybe Lydia can give
> some comment on this.
> 
> Also, in case you want to see the big monster patch just for reference, I
> can see if it can be posted to alsa-devel.  It should be no problem, IMHO.

Heh, who wants it? ;)
The logically split patches are really appreciated, especially in such
a case.


thanks,

Takashi