I also tried with some other live-CDs, like Knoppix and Mandriva-move. Behaviour is exactlty the same: the sound card is recognized, but sound does not work.
-- [Dapper, Edgy] Sound does not work on laptop Packard Bell J2830W https://launchpad.net/bugs/75528 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs