Screen wont lock after timeout, stays on

[tomme12]

Im not sure whats going, but after I get want to stop using the phone, I have it set for 15 seconds to go blank and lock. Sometimes it will not go blank, the screen just stays lite.... if I press the power button, it will go black, then flash back on, then lock, then go black.

Its killing my battery and I cat figure out whats doing it. Any tips out there?

 

[BlackHawkA4]

I have this problem when I hit the power button too fast. Ie if I forget to do something and press power to turn off then turn back on.

doing that also freezes up the lock screen and I can't unlock until I power off screen again. Was wondering the same thing.