Confirm this bug and last solution privided by SB.
Linux ubook 2.6.31-18-generic #55-Ubuntu SMP Fri Jan 8 14:55:26 UTC 2010 i686 GNU/Linux MacBook2,1 (version 1.0)
cat /proc/asound/card0/codec#* | grep Codec Codec: SigmaTel STAC9221 A1
Confirm this bug and last solution privided by SB.
Linux ubook 2.6.31-18-generic #55-Ubuntu SMP Fri Jan 8 14:55:26 UTC 2010 i686 GNU/Linux
MacBook2,1 (version 1.0)
cat /proc/asound/ card0/codec# * | grep Codec
Codec: SigmaTel STAC9221 A1