Tested it seconds ago on 2.6.20-11-generic with an Acer Aspire 1692. The problem remains the same, no sound after hibernating, and everything works ok when the computer is boot "from scratch"
-- [Feisty] Inaudible audio upon resuming from suspend-to-disk https://launchpad.net/bugs/80893 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs