I'll try to reproduce this locally using the upcoming USC version with more logging ([1]). Hopefully the USC logs along with the powerd logs will give us some more information about what is going on.
[1] https://code.launchpad.net/~afrantzis/unity-system- compositor/log/+merge/274550 ** Changed in: unity-system-compositor (Ubuntu) Assignee: (unassigned) => Alexandros Frantzis (afrantzis) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510250 Title: screen comes on without interaction To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1510250/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs