[alsa-devel] Intel HDA / AD1986A problems
tiwai at suse.de
Tue Aug 21 14:34:22 CEST 2007
At Mon, 20 Aug 2007 22:27:40 -0400,
Peter Skensved wrote:
> Configuration : Lenovo 3000 N100 laptop with Intel HDA / Anlog Devices AD1986A
> soundcard running CentOS5.0 with 2.6.18-8.1.8.el5 kernel ( uses 1.0.12rc1 based
> alsa driver ).
> The driver works with the model=laptop-eapd option except for a few things :
> 1) Plugging in an external headset will not mute the internal speakers ( has to be done
> manually in alsa-mixer )
That's an unimplemented feature. It shouldn't be too hard to add it
if you help debugging well (i.e. you can build and test drivers from
HG tree without hitch).
> 2) The PC speaker ( bell ) appears to be permanently muted.
Partly intended (as I dislike it ;)
> 3) The external microphone input does not appear to be working no matter what I do.
Do you mean for recording or analog loopback?
> 4) When recording from the internal microphone the level is very, very low and almost
> drowns in static noise.
There are "Mic Boost" and "Front Mic Boost" mixer volumes.
> Any easy way to fix the above ? Number 4 in particular ? I've tinkered with backporting
> what I thought were relevant differences between the latest patch_analog.c and the one
> used in the kernel I have (alsa-driver 1.0.12rc1 ) but I see no difference.
Doh, that's way too old, stone aged. Use ALSA HG version.
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