Ubuntu 12.04 32bit ACER Aspire 1410
The built in microphone will not pic up sound. I have tried adjusting in pavucontrol, alsa mixer, and alsa-base.conf with various options:
options snd-hda-intel model= <-- "laptop" "acer" etc.
The computer was previously running netbook remix. We were able to get the mic to work at that time by panning the audio to one channel as a workaround.