gnome-settings-daemon listens to the media keys (and also speaks mpris if no player grabbed them), it should be responsible for doing this as well.
** Package changed: indicator-sound (Ubuntu) => gnome-settings-daemon (Ubuntu) -- You received this bug notification because you are a member of DX Packages, which is subscribed to indicator-sound in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/779544 Title: "Play (or play/pause)" keyboard shortcut should launch media player if not running Status in “gnome-settings-daemon” package in Ubuntu: Confirmed Bug description: Just like the "play" button in the music player section in the sound menu does. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/779544/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp