Active display: Fix visible NavBar buttons on Lockscreen

[log]

Change-Id: Iae98ada2483fd6fc35f33178b61791356ec8d0a2
Active display: Add some log output

Change-Id: I3443214fecb141a4df177b9cfffbb3a733257a5e
Active display: Fix screen turning back on directly after turning it off

Change-Id: Id0dd4c9eae708c21300355adab44236a1071e2a5