Thank you for the comments, but my problem has nothing to do with this kind of bug. I tested your solution but nothing changed. Here are the required logs for helping you debugging (sorry for answering so late to this bug description ...
** Attachment added: "All logs required for debugging sound" http://librarian.launchpad.net/6609916/logs.txt -- sound (ALC880) does not work in edgy https://launchpad.net/bugs/77828 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
