07-15-2013 12:47 PM - edited 07-15-2013 12:48 PM
I have a T430, running Windows 8.
The physical 'Microphone Mute' button (above the keyboard) works fine for muting my built-in mic, but it doesn't mute my USB headset.
I've tried both options on the 'Lenovo - Microphone Mute' settings from the Windows Control Panel: "All recording devices", as well as "Only the recording device selected below".
BTW, only the built-in microphone is listed under the second option ("Only the recording device selected below").
It looks like the USB headset is not recognized by the Lenovo Mic Mute control as an existing recording device.
However, the USB headset works correctly, and it is also shown correctly on the Windows recording devices list (Control Panel >> Sound >> 'Recording' tab').
Hope you can help.