[ineloquucius]

The problem is that I'm often not there to turn it off. I'd like the phone to go black--lights out--as configured to do. 1 min for external power, 30 sec for battery.

I also just found another thread where others are having a similar problem. When plugged into a usb charger (or perhaps even an A/C - D/C charger as well), the light will dim but never go off (as opposed to bouncing back and forth from dim to bright every 30 secs or so). I have the same problem as well.