I'm trying to figure this out but its quite a head scratcher. When I start PlayBook it's all bright and shiny, however, after the backlight times out and dims it never comes back on. Tapping, swiping, I can't get it back on. The device still operates normally but the backlight never turns back on. I'm looking at the Screen Props and I see...
Unplugged
-Backlight = Full
-Backlight Time Light = 1 Min
-Auto Backlight Dim = On
-Standby Time Out = 5 Mins
Plugged
-Backlight = Full
-Backlight Time Light = 5 Min
-Auto Backlight Dim = On
-Standby Time Out = 5 Mins