I was suffering from this yesterday, I noted the following behaviour. After/While running the music the screen still detects input even with it off After the music had closed music-app was still in powerd [0] and I could interact with any app with the display off Only a restart of the device resolved the issue.
0 - $ powerd-cli list powerd-cli: Running as user is not fully supported. System State Requests: Name: com.canonical.Unity.Screen, Owner: :1.11, State: 1 Name: media-hub-music-playback, Owner: :1.129, State: 1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1337239 Title: Digitiser still works when phone locked To manage notifications about this bug go to: https://bugs.launchpad.net/music-app/+bug/1337239/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs