[alsa-devel] ALC892 optical SPDIF not working

[Manuel Lauss]

On Fri, Jul 30, 2010 at 1:59 PM, Takashi Iwai <tiwai at suse.de> wrote:
> At Fri, 30 Jul 2010 13:32:40 +0200,
> Manuel Lauss wrote:
>>
>> Hi Takashi,
>>
>> On Fri, Jul 30, 2010 at 12:24 PM, Manuel Lauss
>> <manuel.lauss at googlemail.com> wrote:
>> > On Fri, Jul 30, 2010 at 11:13 AM, Takashi Iwai <tiwai at suse.de> wrote:
>> >> At Fri, 30 Jul 2010 10:00:13 +0200,
>> >> Manuel Lauss wrote:
>> >>>
>> >>> Hello,
>> >>>
>> >>> I have a Gigabyte 890GX-based board with an ALC892 codec.
>> >>> The optical SPDIF output does not work at all (i.e. no red light on
>> >>> the cable), and the kernel prints
>> >>> "ALSA hda_codec.c:407: Too many connections"
>> >>> messages whenever sound is played (analog works, but I need
>> >>> digital).
>> >>
>> >> Could you try the latest alsa-driver-snapshot?
>> >>    ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
>> >>
>> >> I fixed a few things regarding digital I/O handling of Realtek codecs
>> >> now, and fixed the too-many-connections bug there, too.
>> >
>> > I pulled from your tree: AC3/DTS passthrough works now, however "normal" audio
>> > only works with 48kHz rate.
>>
>> Is there a way to insert an initial playback delay?  Under linux, the
>> first 2-2.5 seconds
>> of anything played are just silence; on windows audible playback
>> starts immediately.
>
> It's the time for synchronization your digital receiver takes, I guess.
> Maybe changing SPDIF status makes it resync, which happens at each
> opening / closing the stream.

Yes, seems so. I've found a workaround in meantime.

Thanks!
        Manuel Lauss