Re: ALC892 optical SPDIF not working

From: Paul Menzel <paulepanter@users.sourceforge.net>
To: alsa-devel@alsa-project.org
Subject: Re: ALC892 optical SPDIF not working
Date: Sat, 31 Jul 2010 19:22:52 +0200	[thread overview]
Message-ID: <1280596972.4074.1.camel@mattotaupa> (raw)
In-Reply-To: <AANLkTin+BUQr0iVq3MT+O-dA6PYyZZF_QVcEdoM-xK9p@mail.gmail.com>

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Am Freitag, den 30.07.2010, 14:03 +0200 schrieb Manuel Lauss:
> On Fri, Jul 30, 2010 at 1:59 PM, Takashi Iwai <tiwai@suse.de> wrote:
> > At Fri, 30 Jul 2010 13:32:40 +0200,
> > Manuel Lauss wrote:

> >> On Fri, Jul 30, 2010 at 12:24 PM, Manuel Lauss
> >> <manuel.lauss@googlemail.com> wrote:
> >> > On Fri, Jul 30, 2010 at 11:13 AM, Takashi Iwai <tiwai@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.

Could you elaborate on the workaround please, so others having this
issue know it.

Thanks,

Paul

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