This issue is a FAQ for this audio codec and chipset. You need to unmute the element from which you're recording in addition to selecting [and/or unmuting] 'Capture', 'Line', and 'ADC'. These last three elements also need to be set to capture. (If you're recording from a 'Mic', then substitute it for 'Line'.)
** Changed in: alsa-driver (Ubuntu) Importance: Untriaged => Low Status: Unconfirmed => Needs Info -- Can't record from microphone with snd-cs46xx https://launchpad.net/bugs/49908 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs