The requisite patch[0] has been merged already, but it is not available in a default feisty kernel yet.
[0] http://hera.kernel.org/git/?p=linux/kernel/git/bcollins/ubuntu-2.6.git;a=commitdiff;h=2fadead62fc6222b10799bd8cb134cfb6a79171f ** Changed in: alsa-driver (Ubuntu) Assignee: Andrew Ash => Daniel T Chen Status: Needs Info => Fix Committed -- internal speakers do not work on MacBook Pro https://launchpad.net/bugs/87253 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
