[ALSA - driver 0001510]: ac97 with SiS SI7012 [ALC203 rev 0] doesn't allow to control volume by master channel, PCM and headphones work

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
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<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1510> 
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Reported By:                wiktorw
Assigned To:                
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Project:                    ALSA - driver
Issue ID:                   1510
Category:                   PCI - intel8x0
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Distribution:               Gentoo 2005.1
Kernel Version:             2.6.13-gentoo-r4
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Date Submitted:             10-28-2005 17:54 CEST
Last Modified:              11-08-2005 17:45 CET
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Summary:                    ac97 with SiS SI7012 [ALC203 rev 0] doesn't allow to
control volume by master channel, PCM and headphones work
Description: 
On my Acer Aspire 5002LM laptop I have the following problem:
- Master channel does not control volume level (no matter if I slide it or
mute)
- PCM channel works
- Headphone/PCM-2 channel works

The Master/PCM/Headphone channels are for the "SiS SI7012 (Alsa Mixer)"
device, while Volume/PCM/PCM-2 channels are for the "Realtek ALC203 rev 0
(OSS Mixer)" device. They do the same thing: Master/Volume control in
gnome-volume-control applet doesn't change the volume level.

At first I thought that this problem is software-related, but in fact it
isn't. Now I have tested several things and all give me the same result. I
also suspect that not only I have such problems, althought the original
posters might not be aware of it. See here for the original discussion:

http://forums.gentoo.org/viewtopic-t-387739.html

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----------------------------------------------------------------------
 mrblur - 11-08-05 08:44 
----------------------------------------------------------------------
Acer AS5002WLMi - the same card - the same problem :/

----------------------------------------------------------------------
 tiwai - 11-08-05 17:45 
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Make sure that you all have the same AC97 codec chip (check
/proc/asound/card0/codec97#0/* file).  Otherwise it's a completely
different problem!

Issue History
Date Modified  Username       Field                    Change              
======================================================================
10-28-05 17:54 wiktorw        New Issue                                    
10-28-05 17:54 wiktorw        Distribution              => Gentoo 2005.1   
10-28-05 17:54 wiktorw        Kernel Version            => 2.6.13-gentoo-r4
10-30-05 09:35 garfungiloops  Note Added: 0006573                          
10-30-05 09:36 garfungiloops  Issue Monitored: garfungiloops                    
11-08-05 08:44 mrblur         Note Added: 0006619                          
11-08-05 17:45 tiwai          Note Added: 0006626                          
======================================================================




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