Looks like something has gone wrong/missing with the indicator side of the sound service. An odd one for sure. Could you please remove indicator sound and then reinstall it.
sudo apt-get remove indicator-sound sudo apt-get install indicator-sound -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/761862 Title: indicator-sound not shown after upgrade -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
