Re: Intel HDA on Mac Pro

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On Wed, 2006-12-13 at 10:36 -0600, Shaw Terwilliger wrote:
Tobin Davis wrote:
> Could one of you run a little experiment for me?  Here's what I need:
> 
> Load the sound drivers.  Unplug headphones, toggle off the headphone
> button in alsamixer and type "cat /proc/asound/card0/codec#0 >
> without-headphones.codec".  Next, plug in your headphones, toggle the
> headphone button and type "cat /proc/asound/card0/codec#0 >
> with-headphones.codec".  Send me both files.

Attached.  Quick diff for your instant gratification:

hansen:~% diff without-headphones.codec with-headphones.codec
156c156
<   Amp-Out vals:  [0x80 0x80]
---
>   Amp-Out vals:  [0x00 0x00]
That was exactly what I was looking for (and hoping was not happening).  Essentially, the headphone switch is correctly muting the jack (0x80, left and right channel).  Just no volume.

Back to the manual.  I'll try to get another patch out today.

Thanks,
--
Tobin Davis <tdavis@xxxxxxxxxxxx>
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