This is my first post here. Yesterday I was looking for a cheap way to do time-lapse photography since I sold my GoPro. A couple of Google searches pointed me towards CHDK. So I looked into it and loaded it on my Canon Powershot A4000 IS. I'm using a4000-101b-1.2.0-3391-full_ALPHA version of CHDK. For time-lapse I'm using Countdown_Intervalometer and it does exactly what I need.
My question is how can I set the LCD to turn off during time-lapse sessions to conserve battery power? Or at the very least reduce the LCD brightness. I may need to do time-lapse for durations as long as 2 hrs. I'm not sure that camera battery will last that long under its current mode of operation.