I have the same problem on a Thinkpad L520 - it has two buttons with leds - mute audio and mute microphone. Both buttons work, but the leds don't change their state. Initially they are in whatever state Windows last left them (they work there) and they remain in that state throughout the Linux session. Happens in Precise with kernel 3.2.0-23.
I have the same problem on a Thinkpad L520 - it has two buttons with leds - mute audio and mute microphone. Both buttons work, but the leds don't change their state. Initially they are in whatever state Windows last left them (they work there) and they remain in that state throughout the Linux session. Happens in Precise with kernel 3.2.0-23.