Just noticed this in the past few days.
While on a phone call, trying to get to a regular home screen and/or any other screen, the thing wants to turn the screen off all the time, with zero delay.
Scenario: I'm on the phone for a while. The screen has gone to sleep like normal. I want to unlock it and look some other stuff up. Try to turn the screen back on with the power button (if it doesn't bring the lock screen on by itself). I can't even get through the swipe lock without the screen shutting itself off. Once I finally do that, trying to pull down the notification bar, or access any other app, is very problematic..... it keeps wanting to turn the screen off. None of my smart actions should affect this.
Anyone else notice this?