I hate the way the screen is basically unreadable when the lights are off.
It defies logic the have it always dark when the room is dark, and bright when the room is bright. No option... What idiot engineer designed that piece of genius? I know what flawed logic they used, but for me, I want to look at it in the dark, so it forces me to turn a bright light on.
Please tell me someone knows how to trick the sensor...
"The light sensor is just a basic photoresistor" have you opened it up and KNOW for sure this is what they are using and its not a photo diode/transistor or even an IC sensor.
The brightness steps to off and is not linear so my guess is that the light sensor and the display backlight have the micro in between and what you are describing will not work and could cause damage.