I've upgraded trough gksudo "update-manager -c", I haven't got other problem than this. Here are my logs. Thanks for the feedback
** Attachment added: "Logs from my version upgrade" http://librarian.launchpad.net/5038960/dist-upgrade.tar.gz -- No sound with ALSA after dist-update https://launchpad.net/bugs/70944 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
