[ALSA - driver 0001572]: Simultaneous sound from speakers and headphone

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1572> 
======================================================================
Reported By:                mjsb
Assigned To:                tiwai
======================================================================
Project:                    ALSA - driver
Issue ID:                   1572
Category:                   PCI - hda-intel
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Distribution:               Gentoo Linux
Kernel Version:             2.1.13-gentoo-r3
======================================================================
Date Submitted:             11-17-2005 16:31 CET
Last Modified:              01-21-2006 03:24 CET
======================================================================
Summary:                    Simultaneous sound from speakers and headphone
Description: 
I cannot ear headphones without having sound from front speakers
simultaneously.
Volume of headphones is adjusted by front speakers and when muting front
speakers also mutes headphones.
(in MS Windows, inserting headphones automatically disables sound from
front speakers)

======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
has duplicate       0001663 LW20 bugs with headphone input, realtek...
======================================================================

----------------------------------------------------------------------
 mjsb - 01-16-06 11:19 
----------------------------------------------------------------------
Someone else has reported bug #0001663 which describes the same problem as
here (#0001572).

----------------------------------------------------------------------
 mjsb - 01-21-06 03:24 
----------------------------------------------------------------------
I have just recompiled the alsa-kernel driver with ./cofigure
--with-debug=full and discovered using 'option model=test' that it is
possible to have all four combinations:
  1) speakers off and HP off
  2) speakers off and HP on
  3) speakers on and HP off
  4) speakers on and HP on
I have tried all models available in the patch_realtek.c but could only
have it working with the  'test' model. None of the other models allowed
me to have 2) working.

The 'In-4 Pin Mode' mutes/unmutes HP,
and 'Front Pin Mode' mutes/unmutes internal speakers.

Doing a 'cat /proc/asound/card0/codec#0' in the combinations above I only
get differences in two places. Namely in sections 'Node 0x14' and 'Node
0x1b' for speakers and HP, respectively.
Differences are on a line containing:
  Pin-ctls: 0x00:                 --> when muted (applies to both sections
0x14 and 1x1b)
  Pin-ctls: 0xc0: OUT HP    --> when unmuted (applies to both sections
0x14 and 1x1b)

I'm uploading two files, one generated with sound from speakers and the
other with sound from HeadPhones, where you can verify this.

If mode information is needed, just ask ;)

Issue History
Date Modified  Username       Field                    Change              
======================================================================
11-17-05 16:31 mjsb           New Issue                                    
11-17-05 16:31 mjsb           Distribution              => Gentoo Linux    
11-17-05 16:31 mjsb           Kernel Version            => 2.1.13-gentoo-r3
11-17-05 16:33 mjsb           Issue Monitored: mjsb                        
12-08-05 21:23 mjsb           Note Added: 0006962                          
01-16-06 11:19 mjsb           Note Added: 0007685                          
01-19-06 18:27 rlrevell       Relationship added       has duplicate 0001663
01-21-06 03:24 mjsb           Note Added: 0007730                          
======================================================================




-------------------------------------------------------
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://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642