![]() ![]() This is all controlled by a deamon called “powerd”-the Chrome OS Power Manager. After that, it checks a few more variables-like general lighting and whether the system is on AC power or battery-then sets the brightness to specific parameters based on what it finds. At boot, the system automatically sets the display brightness to 40%, then adjusts accordingly as the system starts. The phone uses your preferred brightness as a baseline, then adjusts up or down accordingly as the environment changes.Ĭhromebooks don’t really work like that, because the way they judge brightness isn’t nearly as granular.īy that, we really mean Chromebooks only use a few discrete settings. Most modern smartphones allow you manually adjust the display brightness and use the ambient sensor at the same time. ![]() How Ambient Light Sensors Work on ChromebooksĬhromebooks are a little bit different from your smartphone. The opposite happens in sunlight or a bright room. For example, in a dark room, the display dim to be easier on your eyes and the keyboard brightens so you can see it better. ![]() That sensor monitors the ambient light wherever you are, then adjusts the display brightness and keyboard backlight accordingly. ![]()
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