I'm facing the same problem, I did the update this afternoon and sound stoped working, I have the same error messages, with a similar card: M-audio Revolution 7.1 -- ICE1724. I tried deleting my ~/.asoundrc.asoundconf file with out any luck, please contact me if you need more information.
-- Dapper to Edgy upgrade breaks ALSA when asoundconf was previously used https://launchpad.net/bugs/56996 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
