[gentoo-user] hda soundcard and microphone

[gentoo-user] hda soundcard and microphone

[Matthew R. Lee]

I'm still trying to get an external microphone working on my laptop.  I've 
been googling around for the last few hours and searching the alsa-wiki for 
info but I've not found the answer yet.

Here's the setup.  I have a Compaq Presario V5000 laptop.  It has the HDA 
soundcard (82801G (ICH7)) with the Conexant CXT5047 chip.  I do not have the 
alsa drivers compiled in the kernel I'm using alsa-driver-1.0.14-rc1 which 
was compiled with ALSA_CARDS set to hda_intel.
Sound playback is fine with amarok, mplayer, xine, etc

alsamixer gives me the following controls to play with 
Master, PCM, Mic Bypa, IEC958, Capture, ExtMic
I know what Master and PCM do
Mic Bypa can be set to capture or not
I'm not sure what to do with IEC958, it can be either muted or on
Capture can be set to capture or not and has volume control
ExtMic is set to capture and can not be changed, it also has no volume control

I've tried various combinations of setting but without success
Can anybody help me out, I'd love to be able to use skype again, it's a hell 
of a lot cheaper than making international calls home from a regular 
telephone.

Thanks
Matt
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Dr. Matthew R. Lee
CASEB & ECIM
Departamento de Ecologia,
P. Universidad Catolica de Chile,
Alameda 340, Santiago.
CP 6513677
CHILE

matt@matthewlee.org
mlee@bio.puc.cl

URL: meiochile.matthewlee.org
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