[ltp] Re: T420 Mute LED

[Peter FP Zhang]

Hello Dave,

T420 Mute/UnMute and its LED handling can not be controlled by event mask or
other.
Mute button event is reported to BIOS from embedded controller and BIOS
processed it by itself to apply the mute setting  and LED. There is no
interface to manage them.




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If you meet any Linux compatibility issues on ThinkPads, please try to ping me, I will check if there is anything I can help.
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