It may be that when you switch to battery power your Energy Saver settings are lowering the brightness for you. That's what happens on my PowerBook, anyway. I actually manually lower the brightness even more when I'm on battery, because that adds significantly to battery life.
by Andy Lee — Mar 25
It may be that when you switch to battery power your Energy Saver settings are lowering the brightness for you. That's what happens on my PowerBook, anyway. I actually manually lower the brightness even more when I'm on battery, because that adds significantly to battery life.