[alsa-devel] HD Audio with 'mute light'

Arnout Engelen alsalist at bzzt.net
Mon Sep 24 12:06:33 CEST 2012

On Mon, Sep 24, 2012 at 10:12:19AM +0200, David Henningsson wrote:
> >Attached is the codec info.
> We generally recommend people to submit the entire alsa-info, rather
> than just the codec info (which, btw, was an empty attachment).

woops :)

> In particular; if you're having a thinkpad, the mute LED is controlled
> through thinkpad-acpi, and if you're having an HP, it's usually
> connected to the codec in a way hinted by BIOS. Given that you have
> a conexant codec, I'm guessing it's a thinkpad.

Thanks (also to Takashi) for this explanation. Indeed this is a ThinkPad
(W520). I'll look into thinkpad-acpi :)

Kind regards,


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