[alsa-devel] Nvidia hdmi problems

[Takashi Iwai]

At Thu, 23 Oct 2008 20:34:30 +0200,
Nir Tzachar wrote:
> 
> On Thu, Oct 23, 2008 at 10:04 AM, Takashi Iwai <tiwai at suse.de> wrote:
> > At Wed, 22 Oct 2008 19:09:41 +0200,
> > Nir Tzachar wrote:
> >>
> >> On Wed, Oct 22, 2008 at 8:15 AM, Takashi Iwai <tiwai at suse.de> wrote:
> >> > At Wed, 22 Oct 2008 06:43:06 +0200,
> >> > Nir Tzachar wrote:
> >> >>
> >> >> On Wed, Oct 22, 2008 at 4:42 AM, Wei Ni <wni at nvidia.com> wrote:
> >> >> > Hi, Takshi
> >> >> > We have no official plan to support this nforce 630i HDMI audio in linux
> >> >> > now,
> >> >> > and we didn't do any test on it yet. So we can't provide the official
> >> >> > patch for this addition.
> >> >> >
> >> >> > I think if someone interest in it and do some test, he can generate
> >> >> > patch and submit it.
> >> >>
> >> >> As I am interested, and willing o do the tests, I would be happy to
> >> >> know which tests are needed.
> >> >
> >> > If you can play both audio streams and non-audio streams over the device
> >> > by some applications, it's basically confirmed to work :)
> >>
> >> What do you mean by non-audio stream?
> >
> > The passthrough of AC3 stream or so.
> >
> >> Can you give specific commands
> >> which should work?
> >
> > I usually test using ac3dec program included in alsa-tools.
> 
> Tried  ac3decode, and got a perfect sound out. I am using the
> following asound.conf (if it is relevant):

Well, I guess this won't be a non-audio mode.
Try to get the latest alsa-tools git tree.  I changed ac3dec and
now it has -H option.  Specify this together with -C,

	% ac3dec -C -H foo.ac3

This will be the AC3 passthru testing.


HTH,

Takashi