From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001083]: NVIDIA CK8 ALC655 SPDIF passthrough Date: Wed, 20 Jul 2005 01:37:56 +0200 Message-ID: <308a76b81e0defef0bdc3f5fdaf9d7b1@bugtrack.alsa-project.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [82.113.61.162]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id 731C2183 for ; Wed, 20 Jul 2005 01:37:56 +0200 (MEST) Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org A NOTE has been added to this issue. ====================================================================== ====================================================================== Reported By: vedran Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 1083 Category: PCI - intel8x0 Reproducibility: always Severity: major Priority: normal Status: new Distribution: Debian sid Kernel Version: 2.6.10-ac12 ====================================================================== Date Submitted: 04-29-2005 15:33 CEST Last Modified: 07-20-2005 01:37 CEST ====================================================================== Summary: NVIDIA CK8 ALC655 SPDIF passthrough Description: We're using a motherboard with nVidia nforce2IGP chipset, and the sound device on this board is NVidia CK8, Realtek ALC655 rev 0. The motherboard is MSI K7N2GM2, and SPDIF passthrough works fine on Windows XP with stock realtek drivers. On Linux, I'm using the latest ALSA CVS (29.04.2005.) on a 2.6.10-ac12 kernel. I've been able to make a 2 channel pre-decoded SPDIF output work by using the hw:0,2 device. If I use the default device, there is no sound on SPDIF, regardless of the SPDIF related controls in mixer. The controls in the mixer are: However, I'm having trouble with AC3 passthrough, I'm using ac3dec -C from alsa-tools CVS, and I get no sound. I'm attaching the archive with the output of iecset and /proc/asound/card0/codec97#0/* files during the ac3dec run, and when idle. Maybe the fact that decoded SPDIF output is not working until I pass it through the hw:0,2 has something to do with this, how can I make ac3dec -C use hw:0,2? ====================================================================== Relationships ID Summary ---------------------------------------------------------------------- has duplicate 0001094 nforce4 - optical spdif out not working ====================================================================== ---------------------------------------------------------------------- tiwai - 06-27-05 16:56 ---------------------------------------------------------------------- nforce chip is the DMA engine and controls the connected ac97 chip(s). AC97 chip only converts the signal (that's why called "codec"), and isn't responsible for DMA. Although AC97 can support SPDIF, but some onboard controller chips don't require AC97 for SPDIF I/O but do by themselves, e.g. ATIIXP and ALI5455. ---------------------------------------------------------------------- gilesjuk - 07-20-05 01:37 ---------------------------------------------------------------------- Fixing the output to 48Khz allows me to play mp3s fine. Eg. mplayer -ao alsa:device=hw=0,2 -srate 48000 Issue History Date Modified Username Field Change ====================================================================== 04-29-05 15:33 vedran New Issue 04-29-05 15:33 vedran File Added: spdif_passthrough.tar.gz 04-29-05 15:33 vedran Distribution => Debian sid 04-29-05 15:33 vedran Kernel Version => 2.6.10-ac12 05-30-05 13:21 vedran Note Added: 0004809 06-01-05 16:53 tiwai Note Added: 0004862 06-01-05 16:54 tiwai Relationship added has duplicate 0001094 06-01-05 19:19 eklarson Issue Monitored: eklarson 06-03-05 00:31 Human Note Added: 0004880 06-03-05 00:32 Human Issue Monitored: Human 06-06-05 23:30 Human Note Added: 0004910 06-08-05 15:01 tiwai Note Added: 0004928 06-10-05 18:07 Human Note Added: 0004984 06-19-05 16:07 gilesjuk Note Added: 0005090 06-21-05 00:50 gilesjuk Note Added: 0005099 06-21-05 00:57 gilesjuk Note Edited: 0005099 06-21-05 11:19 tiwai Note Added: 0005102 06-26-05 13:18 gilesjuk Note Added: 0005263 06-26-05 13:19 gilesjuk Note Edited: 0005263 06-27-05 16:56 tiwai Note Added: 0005280 07-20-05 01:37 gilesjuk Note Added: 0005531 ====================================================================== ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click