I've made some commits in the past few days that will be uploaded and available some time early next week that should fix this.
** Changed in: linux-source-2.6.20 (Ubuntu) Status: Unconfirmed => Fix Committed -- CPU at maximum speed when connected to AC https://launchpad.net/bugs/84883 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs