I think you shouldn't have post more than one bug in one bug report. Here you can find some instruction from someone who has the same laptop you have: https://wiki.ubuntu.com/LaptopTestingTeam/AcerAspire5720 You may also contact him to help you further.
-- [Hardy-Gutsy]problems with Sound, atheros, webcam, compiz in my Aspire 5720z laptop https://bugs.launchpad.net/bugs/182514 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
