Re: AD1986a

[Takashi Iwai <tiwai@suse.de>]

At Wed, 04 Jan 2006 19:22:21 +0100,
Arnaud Patard wrote:
> 
> Hi,
> 
> 
> I have the same problem as
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1678
> 
> I though that it was only a matter of how the hda verbs were initialised
> so I made a patch allowing to change the channel configuration
> (http://people.mandriva.com/~apatard/ad1986a_2channel_mode_fix.patch).
> Unfortunately, this was not enough. 

This patch looks fine.

> Today, I've added this patch
> http://people.mandriva.com/~apatard/dont_copy_front.patch which is
> working but it's rather something ugly.
> 
> Moreover, I'm only able to test this with two speakers, so I don't know
> if these patches are working with 4 or 6 channels setups.

Surely won't work since you disabled the signal to surrounds :)

> Any hint on how to debug and fix this bug ?

What is the exact status on your board?  Is only the front left
channel noisy or silence?  I still don't figure out how the latter
patch fixes the problem...


Takashi


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