I've found this thread with another report and a grub option that solves the issue:
http://www.ubuntuforums.org/showthread.php?p=2252946 I feel this bug should be filed under some edgy/feisty package instead of a particular source kernel? -- Broken sound system (looping sound) after Dapper in Edgy, Feisty https://launchpad.net/bugs/63388 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
