I'm running Win7Pro 64bit in a Tecra R840 laptop. My power planning regarding LCD brightness is 40% if running on batery and 100% if plugged in.
The problem is that, for some reason, I can't keep these settings and Windows (?) change it to 40% on batery and plugged in. Example: I change settings to 100% if plugged in (and my laptop is plugged in). The brightnes is at 100%. Then I shut down and start with batery. Brightness is 40%. Everything ok until now...but if I plugged in again the brightness will stay at 40% and if I go to power options I can see that the plugged in option changed to 40%!!!!
Any help will be appreciated.