No mic from combo jack.

[Paul Johnson]

Debian Testing with the stock PulseAudio install.  Combo jack
headphones/microphone.  Can't hear microphone except briefly when mute
switch clicks either direction, or earbuds that came with my phone except
when mute button is held down.  Lenovo N586.  Played around with alsatools
and pavucontrol but couldn't get mic to do more than click on headset, and
mic with same combo plug on earbuds only worked with button pushed in.  Not
quite sure what to do from here,