[LAU] mute laptop speakers with Intel HDA

Ken Restivo ken at restivo.org
Wed Aug 1 20:54:19 EDT 2007

Hash: SHA1

On Wed, Aug 01, 2007 at 11:58:41AM -1000, gnome at hawaii.rr.com wrote:
> The reason you see the options for "caller ID" and "off hook" is that 
> the Intel HDA chipset also includes a modem. My laptop uses Intel HDA, 
> and I'm used to the modem part showing up as if it were an audio device.
> The audio works on my laptop except for an inability to record from the 
> mic input. Last I heard, ALSA was blaming the kernel, and kernel 
> developers were blaming ALSA. Although I haven't tried it since my most 
> recent kernel update.

The culprit is, as it often is, neither the kernel nor the ALSA. 

The bad actor the hardware manufacturer. Apparently the chip is not well-specified, and hardware manufacturers just do their own thing, without documenting it, and write proprietary drivers "which make it work" in Windoze and OSX. 

> $8 USB audio dongle? Where did you find such a thing? Tell me more.

Ebay, about a year ago.

- -ken
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