[ALSA - driver 0001618]: No Sound on Acer with Intel ICH6 HDA and Realtek ALC260

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1618> 
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Reported By:                robertw
Assigned To:                tiwai
======================================================================
Project:                    ALSA - driver
Issue ID:                   1618
Category:                   PCI - hda-intel
Reproducibility:            always
Severity:                   feature
Priority:                   normal
Status:                     assigned
Distribution:               Ubuntu 5.10
Kernel Version:             2.6.12-10-686
======================================================================
Date Submitted:             12-04-2005 21:24 CET
Last Modified:              02-13-2006 06:42 CET
======================================================================
Summary:                    No Sound on Acer with Intel ICH6 HDA and Realtek
ALC260
Description: 
I can load the snd-hda-intel module and play a file via aplay or xmms or
play a cd without any error, but I cannot hear anything neither via the
build-in speakers nor via headphones. All volume controllers are at 70%
and unmuted, except for PCM, because there is no mute/unmute-button.
======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
duplicate of        0001517 No sound on hda-intel on Acer TravelMat...
======================================================================

----------------------------------------------------------------------
 jwoithe - 02-13-06 00:45 
----------------------------------------------------------------------
Here's a couple of comments in reply to things raised over the weekend.

Firstly svilen: it's good to know that my hunch about the real purpose of
the VREF  was correct.  Why they call it a VREF (making it sound like a
reference voltage) rather than a bias voltage is beyond me.  I've seen
this terminology on other audio-related documentation though, so it seems
like it's firmly ingrained in the industry.

AndyP: the newest changes including those involving the jack mode are not
in 1.0.10 so it's no surprise things didn't change for you when trying
1.0.10.  The patches are in CVS though, so until a new release comes out
CVS is your best bet.  Lee's comment is worth keeping in mind though: your
ACER might use different ALC260 chip pins for the various outputs, so CVS
might only partially fix your issue.  Note also that currently the jack
mode controls are active only for the "fujitsu" and the "test" models. 
This may change as other developers with alternative hardware have a
chance to test the mode control with the other alc260 models.

For those who can't get sound out of some or all of their laptop outputs
under the alc260, the alc260 "test" model (also new to CVS) should assist
in working out how these laptops are connected internally.  As er-ku
suggests, it should at least allow one to get sound out and work out what
controls were needed to do so.  Rather than making the use of this model
the permanent solution for such situations though, the information thus
gathered could then be used to tweak the driver to support these other
variations on chip pin use.  The big advantage of the "test" model is that
people can do this testing without having to patch ALSA.

----------------------------------------------------------------------
 er-ku - 02-13-06 06:42 
----------------------------------------------------------------------
jwoithe, thank you so much for your help. I personally appreciate it.
I have a question that i've already raised on the mailing list, but there
either was no reply, or I missed it. And the question is simple: why is
the "test" model considered a debug level feature? Was it really
essential?

And another question: what's the easiest way to compile alsa modules with
those debug features enabled, if I already have my distro-supplied kernel
and headers, where I bet CONFIG_SND_DEBUG is not defined? Can this be done
by appending an argument to `make` or so?

Thanks.

Issue History
Date Modified  Username       Field                    Change              
======================================================================
12-04-05 21:24 robertw        New Issue                                    
12-04-05 21:24 robertw        Distribution              => Ubuntu 5.10     
12-04-05 21:24 robertw        Kernel Version            => 2.6.12-10-686   
12-05-05 07:12 jwoithe        Note Added: 0006908                          
12-05-05 19:35 timmy          Note Added: 0006914                          
12-06-05 15:52 tiwai          Note Added: 0006925                          
12-06-05 18:10 robertw        Note Added: 0006930                          
12-06-05 20:07 tiwai          Note Added: 0006934                          
12-06-05 20:08 tiwai          File Added: alc-cvs-fix.diff                    
12-06-05 20:09 tiwai          Note Added: 0006935                          
12-06-05 22:51 robertw        Note Added: 0006938                          
12-07-05 14:59 tiwai          Note Added: 0006941                          
12-07-05 15:00 tiwai          File Added: alc-cvs-fix2.diff                    
12-07-05 23:10 robertw        Note Added: 0006952                          
12-08-05 17:19 tiwai          Note Added: 0006957                          
12-08-05 22:01 robertw        File Added: codec#0                          
12-08-05 22:02 robertw        File Added: codec#1                          
12-08-05 22:03 robertw        File Added: asound.state                     
12-08-05 22:05 robertw        Note Added: 0006963                          
12-09-05 15:09 tiwai          Note Added: 0006966                          
12-09-05 16:35 robertw        Note Added: 0006967                          
12-09-05 17:03 tiwai          Note Added: 0006969                          
12-09-05 17:17 robertw        Note Added: 0006970                          
12-14-05 13:22 mytux          Issue Monitored: mytux                       
12-19-05 02:11 rlrevell       Note Added: 0007077                          
01-02-06 21:55 robertw        Note Added: 0007391                          
01-04-06 17:29 tiwai          Note Added: 0007441                          
01-04-06 22:00 robertw        Note Added: 0007453                          
01-04-06 22:16 robertw        Note Edited: 0007453                         
01-11-06 23:38 lobstaj        Note Added: 0007572                          
01-11-06 23:48 rlrevell       Note Added: 0007573                          
01-12-06 00:20 lobstaj        Note Added: 0007575                          
01-12-06 00:26 rlrevell       Note Added: 0007576                          
01-12-06 01:16 mytux          Note Added: 0007577                          
01-12-06 01:20 mytux          Note Edited: 0007577                         
01-12-06 14:13 robertw        Note Added: 0007586                          
01-12-06 14:43 lobstaj        Note Added: 0007587                          
01-12-06 16:45 eudoxos        Issue Monitored: eudoxos                     
01-12-06 21:04 rlrevell       Note Added: 0007591                          
01-13-06 01:11 rlrevell       Relationship added       duplicate of 0001517
01-13-06 08:03 eudoxos        Note Added: 0007631                          
01-13-06 11:30 er-ku          Issue Monitored: er-ku                       
01-16-06 00:32 jwoithe        Note Added: 0007682                          
01-17-06 23:32 ilovetronik    Issue Monitored: ilovetronik                    
01-19-06 23:36 ajmitch        Issue Monitored: ajmitch                     
02-08-06 14:46 svilen         Note Added: 0007965                          
02-09-06 00:29 jwoithe        Note Added: 0007969                          
02-09-06 09:04 hweigel        Issue Monitored: hweigel                     
02-10-06 11:02 svilen         Note Added: 0007999                          
02-12-06 21:42 AndyP          Note Added: 0008031                          
02-12-06 22:11 wattazoum      Note Added: 0008032                          
02-12-06 22:14 rlrevell       Note Added: 0008033                          
02-12-06 23:05 er-ku          Note Added: 0008034                          
02-12-06 23:07 er-ku          Note Edited: 0008034                         
02-13-06 00:45 jwoithe        Note Added: 0008035                          
02-13-06 06:42 er-ku          Note Added: 0008037                          
======================================================================




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