William, just a few hints:
1. Only add one option line (the one with ideapad), not both to 
modprobe.d/alsa-base.conf

2. After changing the options and rebooting, the mic. was not
immediately working. I had to start the audio panel and flip the
input/output devices to digital and output only and then back to the
analog stereo/duplex settings. This unselected the input port. After
selecting the input port it started to work.

3. This works somehow "reliable" on my machine with the new kernel and
newest snapshot drivers. A identical machine for my mother using only
the maverick-proposed kernel seems to loose this setting on every
reboot. Even worse: Most of the times the mic only records some nasty
noise instead of real input. In that case the playing with the settings
as mentioned above does not help. This is very frustrating.

Conclusion: At least you should be able to somehow get the mic running
on playing with the input settings. Nevertheless for a daily usage i.e.
like Skype currently this does not work stable/satisfying enough. Hope
this helps, anyways

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https://bugs.launchpad.net/bugs/683487

Title:
  Inbuilt microphone not working on Thinkpad Edge 13 0196CTO

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