Are you using pulseaudio ? If so, you may want to take a look at http://ubuntuforums.org/archive/index.php/t-1135767.html
-- Computer wakes up to GDM from sleep. Session is not recovered https://bugs.launchpad.net/bugs/369606 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
