I have an Acer Aspire One AO722, and the screen is too bright for me in a dark room. I found a way to fix that. You go to control Panel, then Color management. Click the Advanced Tab, and then hit Calibrate display. When you go through the calibration, you will probably find that the gamma is set too high. Lower it almost to the very bottom, just follow the onscreen instruuctions. Also, when it gets to the color adjustments, slide all three color bars to the middle. For some reason those too are set all the way to the right. My guess is that the software designers were trying to overcompensate for something. Maybe this was a legacy problem, and now they need to start using different default settings. Anyway, at the end you can compare the before and after, and you'll notice that your screen is now about 20 percent darker, without any color, sharpness, or contrast losses.
