Comment 9 for bug 1341890

I also have the same problem with my Asus X550L. Speakers work, internal microphone is useless-quiet. Alsamixer has microphone turned on and at 81%, no boost. Auto mute is disabled.

Using headphones with a built in microphone I get a good recording with plenty of volume.

Using Audio Recorder to record sounds played through my browsers does not work.

Running Ubuntu 16.10

If I boot to Windows 7 it all works fine.