After 'apt-get install gnome-control-center' Sound Settings can be launched.
But 'gnome-control-center datetime' says 'Coud not find settings panel "datetime"' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1502480 Title: Sound Settings and Time & Date Settings did not launch during gnome- flashback session To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-applet/+bug/1502480/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs