HDA Intel ALC269VB internal mic only records a high-pitched whine

Question

• The title pretty much says it all.
• See also: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/799058
• This didn't work.

Any ideas?

Answer 1

David Henningsson suggested simply changing the input connector to "Internal Mic". That fixed it!

See launchpad issue 799058 for details.