Logitech C270 webcam

["Paul M. Foster" <paulf@quillandmouse.com>]

Folks:

I bought a Logitech C270 webcam, which is supposed to work in Linux. It 
does, EXCEPT the microphone isn't picking up sound. I've checked in 
alsamixer, and the microphone device can be selected. But under cheese 
or other software, it still does not capture. Yes, I've googled this, 
but it's Linux, so there are few answers and none of them work for me.

Any help?

Paul