Screen brightness setting for reading on Ubuntu 12.04

Question

I read a lot on my computer especially at night. Can I somehow set the screen brightness level on my laptop even lower than the Brightness menu does?

Answer 1

You can increase gamma once you achieved maximum brightness level. Or use high contrast screen colors for better readiblity.

Answer 2

You can try with xrandr, use it like this:

xrandr --output LVDS1 --brightness 0.8

You can set gamma through xrandr too:

xrandr --output LVDS1 --gamma 0.9:0.9:0.9 --brightness 0.8

To get the output name (in this example LVDS1) use:

xrandr