From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001009]: NVidia CK8S 8ch: a center speaker is always silent in native alsa mode (through alsa-lib), works with oss emulation though Date: Thu, 7 Apr 2005 16:28:13 +0200 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 [82.113.61.162]) by alsa.alsa-project.org (ALSA's E-mail Delivery System) with ESMTP id EC530239 for ; Thu, 7 Apr 2005 16:28:13 +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: modax Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 1009 Category: PCI - intel8x0 Reproducibility: always Severity: major Priority: normal Status: new Distribution: Debian unstable Kernel Version: vanilla 2.6.11.5 with self-compiled alsa-driver 1.0.9rc1 ====================================================================== Date Submitted: 03-22-2005 22:34 CET Last Modified: 04-07-2005 16:28 CEST ====================================================================== Summary: NVidia CK8S 8ch: a center speaker is always silent in native alsa mode (through alsa-lib), works with oss emulation though Description: A center speaker stays quiet while playing 5.1 audio directly through alsa-lib (eg. with kaffeine (xine) or mplayer using alsa plugin). As a result, I'm unable to hear what people are speaking in movies because the speech is usually sent to the center speaker (correct me if i'm wrong. i'm new to all this 5.1 business). Anyway, adjusting the volume, muting/unmuting "Center" section, enabling/disabling "Mic As Center/LFE" doesn't have any effect on the center speaker. It stays silent. However, as I noted in the summary, the center speaker works with oss audio driver of xine/mplayer (using oss emulation). However, that mode is not perfect as the center speaker plays the role of left surround and vice versa. In addition, a right surround speaker stays always silent (i guess that's because the RS channel needs to be swapped with LFE; at least I got this impression by having a look at /usr/share/alsa/cards/NForce.conf:surround51). To sum up, my problem is that I can't get the center speaker (which, I guess, is channel 2 on my hardware) working with native alsa apps playing ac3/5.1 audio. ====================================================================== ---------------------------------------------------------------------- modax - 04-04-05 09:59 ---------------------------------------------------------------------- This bug is a dupe of https://bugtrack.alsa-project.org/alsa-bug/view.php?id=0000891. I have seperate sockets for surround, center and side channels (8ch) on my board. Disabling hooks helped to get the center speaker & LFE back. Forcing and especially *locking* "Line-In As Surround" and "Mic As Center/LFE" is not an universal solution anymore. It may confuse lots of people. What you should do at least is *not to lock* those switches. Locking effect is not reflected by mixers and people like me may get confused because turning on/off the switches doesn't make any difference although actually it would if locking were disabled. Please disable locking or better yet do not force those switches on. Thanks! ---------------------------------------------------------------------- tiwai - 04-07-05 16:28 ---------------------------------------------------------------------- Disabling locks are fine. I'll fix this issue later (hopefully in time for 1.0.9), though. The question is whether the current channel routing is correct. Can you confirm it's OK? Issue History Date Modified Username Field Change ====================================================================== 03-22-05 22:34 modax New Issue 03-22-05 22:34 modax Distribution => Debian unstable 03-22-05 22:34 modax Kernel Version => vanilla 2.6.11.5 with self-compiled alsa-driver 1.0.9rc1 03-23-05 13:01 tiwai Note Added: 0004156 03-25-05 00:37 modax Note Added: 0004204 03-25-05 00:37 modax File Added: bug-1009.tar.gz 03-30-05 18:22 tiwai Note Added: 0004268 03-30-05 18:22 tiwai File Added: nforce-conf-test.diff 03-30-05 23:28 modax Note Added: 0004275 04-03-05 17:47 modax Note Added: 0004311 04-04-05 09:59 modax Note Added: 0004324 04-07-05 16:28 tiwai Note Added: 0004358 ====================================================================== ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. 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