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From: Stephen Warren <swarren@nvidia.com>
To: Jean-Yves Avenard <jyavenard@gmail.com>
Cc: ALSA Development Mailing List <alsa-devel@alsa-project.org>
Subject: Re: ALSA 1.0.25 broke AC3 passthrough?
Date: Mon, 06 Feb 2012 21:46:37 -0800	[thread overview]
Message-ID: <4F30BABD.10504@nvidia.com> (raw)
In-Reply-To: <CANpj82+DPJGg1vUvm-otVEWEeXwK8zOy4ZAGjFH81oc5n51CTw@mail.gmail.com>

On 02/06/2012 04:38 AM, Jean-Yves Avenard wrote:
> Today, I installed 1.0.25 drivers and libraries...
> AC3 passthrough is completely broken.
> 
> My hardware: NVidia GT430, hdmi output
> Device used:
> hdmi:CARD=NVidia,DEV=0,AES0=6,AES1=0x82,AES2=0x00,AES3=0x01
> on Ubuntu 10.04 LTS (but using manually built alsa)

Are you able to regress this to a smaller window? I did do some rework a
while back on the HDA driver to support newer GeForce GPUs' audio HW
better, and this potentially had impact on bitstream pass-through,
although it seemed to work at the time. Commits were:

384a48d ALSA: hda: HDMI: Support codecs with fewer cvts than pins
2def817 ALSA: hda: hdmi_eld_update_pcm_info: update a stream in place
3aaf898 ALSA: hda: Separate generic and non-generic implementations
74b654c ALSA: hda: Virtualize SPDIF out controls
7c93597 ALSA: hda: Allow multple SPDIF controls per codec

-- 
nvpublic

  reply	other threads:[~2012-02-07  5:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-06 12:38 ALSA 1.0.25 broke AC3 passthrough? Jean-Yves Avenard
2012-02-07  5:46 ` Stephen Warren [this message]
2012-02-09 11:01   ` Jean-Yves Avenard
2012-02-10  4:09     ` Stephen Warren
2012-02-11 10:41       ` Jean-Yves Avenard

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