Please paste here the part of "lspci -v" about your multimedia audio controller. Have you tried following this guide?
https://wiki.ubuntu.com/DebuggingSoundProblems -- Sound intermittently works / crackles & fades out https://bugs.launchpad.net/bugs/296251 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
