[alsa-devel] Nvidia hdmi problems

[Nir Tzachar]

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):
pcm.card0 {
  type hw
  card 0
}

pcm.dmixer {
  type dmix
  ipc_key 1025
  slave {
    pcm "hw:0,3"
    period_time 0
    period_size 2048
    buffer_size 32768
    rate 48000
  }
  bindings {
    0 0
    1 1
  }
}