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From: bugtrack@alsa-project.org
To: alsa-devel@alsa-project.org
Subject: [ALSA - driver 0000737]: Background noise in master when no playing sound on Asus A7N8X Deluxe (nforce 2)
Date: Tue, 21 Dec 2004 09:28:41 +0100	[thread overview]
Message-ID: <b4fb16dbb57702a805747effc2db6016@bugtrack.alsa-project.org> (raw)


The following issue has been SUBMITTED.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=737> 
======================================================================
Reported By:                keymon
Assigned To:                
======================================================================
Project:                    ALSA - driver
Issue ID:                   737
Category:                   PCI - intel8x0
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Distribution:               Debian
Kernel Version:             2.6.6
======================================================================
Date Submitted:             12-21-2004 09:28 CET
Last Modified:              12-21-2004 09:28 CET
======================================================================
Summary:                    Background noise in master when no playing sound on
Asus A7N8X Deluxe (nforce 2)
Description: 
Quoting http://www.nvnews.net/vbulletin/printthread.php?t=35148:

Every Asus A7N8X Deluxe Rev 2.0 Board has a problem with a weird "whining"
"whirring" or "buzzing" "static" noise coming out of the speakers AND out
of the motherboard itself. 

When speakers are connected and the volume is turned up to normal levels,
the noise is very loud, approx 20% of the signal.

This noise appear when the card is not playing sound and there is low CPU
using. As soon as you play sound, noise stops. If you pause xmms or any
player, noise returns.

Muting all the channels does not stop the noise, but if you exec: "alsactl
power 0 off" &https://bugtrack.alsa-project.org/alsa-bug/view.php?id=161;noise
stops!, but you have to exec "alsactl power 0 on"
to use the card again. The driver could do the same than "alsactl power 0
off" when it isn't playing sound.

If you use the lastest nforce drivers (1.0-0283 or newer) noise stops.


======================================================================

Issue History
Date Modified  Username       Field                    Change              
======================================================================
12-21-04 09:28 keymon         New Issue                                    
12-21-04 09:28 keymon         Distribution              => Debian          
12-21-04 09:28 keymon         Kernel Version            => 2.6.6           
======================================================================




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             reply	other threads:[~2004-12-21  8:28 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-21  8:28 bugtrack [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-12-21 17:40 [ALSA - driver 0000737]: Background noise in master when no playing sound on Asus A7N8X Deluxe (nforce 2) bugtrack
2005-04-09 15:26 bugtrack
2006-01-02 19:26 bugtrack

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