> I applied them to Debian's kernel (with slightly modification) and they > are working fine. Via "alsamixer -c 0" I can change "Mic Mute-LED Mode" > to "Follow Capture" and then led is ON only when microphone is ON. > Recording from microphone is working in both configurations. hm this is the opposite of how it works on my T450s and X1, where the led is ON when microphone is muted. (I do wish the led would be ON when the microphone is not muted ie. listening) -- damjan