I have a Macmini 4,1. I tried to use plug headset with mic for skype call, but it doesn't work.
I can hear the voice from the other end, but my voice can't be heard on the other end. I tried with two or three headsets, but results the same.
Then, a friend asked me to try using USB headset, I brought it from one neighbour and now it works fine.why?
Is it a problem of my macmini, or all macmini would behave like this?
Referring to the answer, I have to decide to buy a new USB headset or not.