ALC655/658 patch breaks stereo output

ALC655/658 patch breaks stereo output

[David Van Duzer]

Greetings -

I have an ABIT AN7 motherboard with an nForce2 audio controller.  The
AC97 chip is an ALC658, and the patch from ac97_patch.c from 1.30 to
1.31 in CVS seems to have broken standard stereo output.  I can get some
sound output from my speakers if I enable Line-In As Surround and
Duplicate Front, but it is very faint.  Without these features enabled,
I don't get any audio output from any of the analog output jacks.

I've looked at the code, for patch_alc655() as compared to
patch_alc650() but I'm not proficient enough to figure out what to
change to make it work, so I've simply modified ac97_codec.c to use
patch_alc650() for my ALC658.  There seem to be other people on the
alsa-users list with a similar problem, and I'd be happy to help try and
diagnose the problem further, but I'm not sure what other information
will be helpful.

TIA
David Van Duzer


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Re: ALC655/658 patch breaks stereo output

[Vedran Rodic]

On Wed, 14 Jan 2004 21:50:38 -0700, David Van Duzer wrote:

> Greetings -
> 
> I have an ABIT AN7 motherboard with an nForce2 audio controller.  The AC97
> chip is an ALC658, and the patch from ac97_patch.c from 1.30 to 1.31 in
> CVS seems to have broken standard stereo output.  I can get some sound
> output from my speakers if I enable Line-In As Surround and Duplicate
> Front, but it is very faint.  Without these features enabled, I don't get
> any audio output from any of the analog output jacks.
> 
> I've looked at the code, for patch_alc655() as compared to patch_alc650()
> but I'm not proficient enough to figure out what to change to make it
> work, so I've simply modified ac97_codec.c to use patch_alc650() for my
> ALC658.  There seem to be other people on the alsa-users list with a
> similar problem, and I'd be happy to help try and diagnose the problem
> further, but I'm not sure what other information will be helpful.
> 

This is still not fixed?

Vedran



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Re: Re: ALC655/658 patch breaks stereo output

[Takashi Iwai]

At Tue, 16 Nov 2004 12:58:30 +0100,
Vedran Rodic wrote:
> 
> On Wed, 14 Jan 2004 21:50:38 -0700, David Van Duzer wrote:
> 
> > Greetings -
> > 
> > I have an ABIT AN7 motherboard with an nForce2 audio controller.  The AC97
> > chip is an ALC658, and the patch from ac97_patch.c from 1.30 to 1.31 in
> > CVS seems to have broken standard stereo output.  I can get some sound
> > output from my speakers if I enable Line-In As Surround and Duplicate
> > Front, but it is very faint.  Without these features enabled, I don't get
> > any audio output from any of the analog output jacks.
> > 
> > I've looked at the code, for patch_alc655() as compared to patch_alc650()
> > but I'm not proficient enough to figure out what to change to make it
> > work, so I've simply modified ac97_codec.c to use patch_alc650() for my
> > ALC658.  There seem to be other people on the alsa-users list with a
> > similar problem, and I'd be happy to help try and diagnose the problem
> > further, but I'm not sure what other information will be helpful.
> > 
> 
> This is still not fixed?

No idea.  Do you have a bug entry in BTS?


Takashi


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