Noticed the mic mute button doesn’t work on T410. Find a solution on askubuntu.com.
On T410, the step A shows following result after run amixer scontrols:
Simple mixer control 'Capture',0
In step C, the script lenovo-mutemic.sh will be modified to use ‘Capture’ for detecting the event.
The mic mute button works fine now, but it can not keep the status after reboot.
Reference: Enabling Mic Mute button and light on Lenovo Thinkpads