From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001731]: Fixed chip configuration for 5.1 in ALC850 code Date: Wed, 11 Jan 2006 01:37:57 +0100 Message-ID: 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 [85.132.177.35]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id D5918156 for ; Wed, 11 Jan 2006 01:37:57 +0100 (MET) 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: C-MoH Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 1731 Category: PCI - intel8x0 Reproducibility: always Severity: major Priority: normal Status: new Distribution: Kernel Version: ====================================================================== Date Submitted: 01-11-2006 01:17 CET Last Modified: 01-11-2006 01:37 CET ====================================================================== Summary: Fixed chip configuration for 5.1 in ALC850 code Description: Frustrated by the fact that the 5.1 DVD I just bought had no voices (since they were on the center channel) I started to dig into it. The details are in the "steps to reproduce". Attached is a (very) small patch that fixed it completely on my system (both the mixer and the channel mix-up). My guess is that the chip was misconfigured by lack of a bit in the MX76 register. (2 instead of 5 for bits 6:4) ====================================================================== ---------------------------------------------------------------------- rlrevell - 01-11-06 01:33 ---------------------------------------------------------------------- I guess you verified that the patch does not break anything, by testing all combinations of the "default", "front", "rear", "centerLFE", "surround51" etc PCMs and surround-related mixer settings, with regular stereo and mono .wav files? ---------------------------------------------------------------------- C-MoH - 01-11-06 01:37 ---------------------------------------------------------------------- Hmmm.. where did the "steps to reproduce" section dissapear? In short, the mixer for center and lfe were completely useless. speaker-test -Dsurround51 -c6 proved that center and lfe were not making sound and rear speakers were weirdly mangled with the center speaker. Different channel routes in asoundrc made the sound come from center and lfe but made rear speakers mute etc. Issue History Date Modified Username Field Change ====================================================================== 01-11-06 01:17 C-MoH New Issue 01-11-06 01:17 C-MoH File Added: cipi.patch 01-11-06 01:21 C-MoH Issue Monitored: C-MoH 01-11-06 01:22 C-MoH Note Added: 0007553 01-11-06 01:33 rlrevell Note Added: 0007554 01-11-06 01:37 C-MoH Note Added: 0007555 ====================================================================== ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click