[ALSA - driver 0000660]: No sound output despite unmuting and maximizing all volume settings

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=660> 
======================================================================
Reported By:                bji
Assigned To:                
======================================================================
Project:                    ALSA - driver
Issue ID:                   660
Category:                   PCI - intel8x0
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Distribution:               Fedora Core 3
Kernel Version:             2.6.9
======================================================================
Date Submitted:             11-21-2004 02:53 CET
Last Modified:              03-07-2005 02:22 CET
======================================================================
Summary:                    No sound output  despite unmuting and maximizing all
volume settings
Description: 
I get no sound output from any program I have tried (xmms, play, aplay, cat
> /dev/audio) with no error messages or any other indication that there is
a problem which would cause sound to not occur.

I have already run alsamixer many times and tried every combination of
muted and unmuted settings with all volumes maximized.  With no volume
settings muted, and all volume settings at maximum level, I still get no
sound.

Everything *looks* like it's working - output in the kernel log, xmms's
display, everything.  But I get no sound out of the built-in speaker or
the headphone jack.

I have tried the following:

* Default install of Fedora Core 3; it recognized the sound card and
installed module settings in /etc/modprobe.conf to load snd-intel8x0.  But
I never got any sound out of this default install no matter what I tried.

* Custom compiled the 2.6.9 kernel with no patches except the software
suspend 2 patch.  This built the version of the ALSA drivers that come
with 2.6.9.  Still no sound.

* Downloaded and compiled version 1.0.7 of the ALSA drivers and installed
them.  Still no sound.

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

----------------------------------------------------------------------
 bji - 12-09-04 07:06 
----------------------------------------------------------------------
Thank you for the suggestion, unfortunately muting "external amplifier" via
alsamixer does not fix the problem.

I apologize but I still don't know how to run the record test that you
(tiwai) are suggesting.  I don't know what program to run to do the audio
recording.  Can you please suggest a program.  Thank you!

----------------------------------------------------------------------
 bji - 03-07-05 02:22 
----------------------------------------------------------------------
OK, here's another data point.

I recently got a Panasonic Y2 in addition to the Panasonic T2 that I was
using when reporting this bug.  As far as I know, the hardware related to
sound in these two laptops is essentially the same.

I discovered that I could get sound to work with the Panasonic Y2 if I did
the following:

* Booted to Windows XP
* Turned the Windows XP volume control to its highest setting
* Muted sound in Windows XP (which is how I usually keep sound in Windows
XP)

Now if I boot Linux with ALSA 1.0.6 (the stock alsa with Fedora Core 3), I
can adjust the sound volumes using alsamixer, and everything works.  I can
play musing using xmms with either the ALSA or OSS plugins, and this also
works (although the volume slider in xmms does not work, not sure why, I
have to use alsamixer or aumix to adjust sound volume).  Also, the
speakers work.

Thus I am convinced that the problem is that the ALSA driver for this
hardware is for some reason not able to adjust the volume beyond some
maximum value which was set by the BIOS, as remembered by the most recent
Windows XP setting.

Does this help at all?

Thanks!

Issue History
Date Modified  Username       Field                    Change              
======================================================================
11-21-04 02:53 bji            New Issue                                    
11-21-04 02:53 bji            Distribution              => Fedora Core 3   
11-21-04 02:53 bji            Kernel Version            => 2.6.9           
11-21-04 02:55 bji            Note Added: 0002481                          
11-21-04 02:56 bji            File Added: proc_asound.txt                    
11-21-04 03:16 bji            Note Added: 0002483                          
11-21-04 03:19 bji            Note Added: 0002484                          
11-23-04 16:20 tiwai          Note Added: 0002522                          
11-23-04 23:23 IceRAM         Note Added: 0002537                          
11-23-04 23:24 IceRAM         File Added: asound.state                     
11-23-04 23:25 IceRAM         File Added: modprobe.conf                    
11-23-04 23:26 IceRAM         File Added: iceram_lsmod.txt                    
11-23-04 23:27 IceRAM         Note Added: 0002538                          
11-23-04 23:28 IceRAM         Note Edited: 0002537                         
11-23-04 23:29 IceRAM         Note Edited: 0002537                         
11-23-04 23:29 IceRAM         Issue Monitored: IceRAM                      
11-23-04 23:45 IceRAM         Note Added: 0002539                          
11-23-04 23:45 IceRAM         File Added: .asoundrc                        
11-23-04 23:46 IceRAM         Note Edited: 0002538                         
11-24-04 12:32 bji            File Added: asound.state                     
11-24-04 12:33 bji            Note Added: 0002550                          
11-24-04 12:40 tiwai          Note Added: 0002552                          
11-24-04 13:15 IceRAM         Note Deleted: 0002537                        
11-24-04 13:16 IceRAM         Note Deleted: 0002539                        
11-24-04 13:19 IceRAM         Note Deleted: 0002538                        
11-24-04 13:26 IceRAM         Note Added: 0002561                          
11-24-04 14:57 tiwai          Note Added: 0002565                          
11-25-04 07:07 bji            Note Added: 0002587                          
11-28-04 04:24 bji            Note Added: 0002619                          
11-28-04 06:04 bji            Note Added: 0002620                          
11-29-04 17:19 tiwai          Note Added: 0002654                          
11-29-04 17:19 tiwai          File Added: stac9752a.diff                    
11-30-04 08:56 bji            Note Added: 0002661                          
11-30-04 21:02 tiwai          Note Added: 0002662                          
12-02-04 06:37 bji            Note Added: 0002674                          
12-02-04 19:20 tiwai          Note Added: 0002689                          
12-06-04 19:47 jnm11          Note Added: 0002730                          
12-06-04 19:47 jnm11          Issue Monitored: jnm11                       
12-09-04 07:06 bji            Note Added: 0002797                          
03-07-05 02:22 bji            Note Added: 0003806                          
======================================================================




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