For some reason, my laptop keeps returning to the default settings for the Power Plan, which means, even though my laptop is plugged in (not running on battery), every time I turn it on, the screen is at less than half brightness, and I have to go in and update the Power Plan settings every time I turn the computer on. Very annoying.
I have tried altering the existing Power Plans, and I have tried creating new Power Plans, both to no avail. My laptop is a Dell Precision M4400, and does have a light sensor, but I've got it turned off, so it shouldn't be affecting my settings.
I have not been able to find a solution to this problem. Anybody with similar problems or a solution, please post in the comments!