[ltp] x41 volume, mute buttons, and acpi

Paul Fox linux-thinkpad@linux-thinkpad.org
Wed, 27 Jun 2007 15:28:27 -0400


i'm running ubuntu feisty on my X41.

i don't do audio or video very often, so it was only recently
that i realized that the special volume and mute keys (they're
separate physical keys) aren't "hooked up" to anything via acpi.

they do have a very real effect on output volume, but no effect
on the alsa mixer levels.

is there a reason for this?  looking through the archives, it
seems that these keys might be handled by the bios directly --
is that really true?

paul
=---------------------
 paul fox, pgf@foxharp.boston.ma.us (arlington, ma, where it's 88.3 degrees)