Same problem here. If I try to increase the maximum value to 350, the screen does not dim after I unplug AC and the dim does not kick in after inactivity. Another interesting twist is that the dim level varies if I try to unplug and re-plug the laptop many times in a row.
Confirming.
Same problem here. If I try to increase the maximum value to 350, the screen does not dim after I unplug AC and the dim does not kick in after inactivity. Another interesting twist is that the dim level varies if I try to unplug and re-plug the laptop many times in a row.
My video card is an Intel 945GM.