Re: ALC268 (no sound)

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At Fri, 1 Feb 2008 18:12:32 +1030 (CST),
Jonathan Woithe wrote:
> 
> Hi Marco
> 
> > maybe this topic is a bit outdated, but still, when using the current
> > hg code of the kernel module together with 2.6.24 (stable), I can't
> > get any sound :(
> 
> Interesting.  I've had another user report getting sound out of the latest
> hg tree with an ALC268 both with test mode and the "auto" mode.  Our
> continued failure to get anything out of your laptop over the last few
> months makes me suspect that there's some other non-standard thing (external
> to the ALC268 codec) linked to the sound system in your laptop which
> prevents audio unless activated.  Takashi, what's your take on this?

Hard to say...  I still think it's either GPIO or EAPD except for very
stupid things like the hardware-volume control via laptop keys
(e.g. Thinkpad has independent volume controls and you have to unmute
it via a button properly).  Marco, did you test all combinations of
GPIO and EAPD?

On other earlier ALC codecs, some device require COEF setups.  This
might be worth to try for ALC268 if the above is all checked.


Takashi
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