Actually all music playback should stop when you lock your session, did you do anything to make this work? (E.g. adding your user to the "audio" group – while not advised – has that effect.)
There is no way you can control audio playback from the greeter and we're currently not planning to add volume controls to the greeter interface because music playback normally just stops when your seat/session becomes inactive. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1458933 Title: No volume control on screen lock - Volume goes to 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1458933/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
