I'm cc-ing some UX people in case they want to add anything. I don't think that a setting to control the initial brightness level would have widespread use, and I don't think controlling this would be useful to enough extensions to justify exposing it via the chrome.power API either. We decided to always start with a middle-of-the-road default brightness level instead, which isn't perfect but is at least predictable. There's some discussion of (b) at issue 221089. Is there a way to adjust the screen brightness so that I may dim the screen beyond the lowest settings Just so folks know what I have already done, I have already attempted to dim the screen by using the keyboard dim screen controls (Fn + F4) and by going into Control PanelHardware and SoundsPower Options. b) A default level is used at boot rather than restoring the previous level. Restoring the previously-set level at boot was problematic, since there's no reason to believe that the system was previously used in an environment similar to the current one - if I set the brightness to 100% because I'm using my device in a bright room, I don't want to be blinded the next time I boot it in a darkened room. Issue 268046:Provide additional brightness control settings (a feature request) Basically: a) After you adjust the brightness, the power manager will leave it alone until you reboot. There's some discussion of (b) at issue 221089. Issue 268046:Provide additional brightness control settings (a feature request)Ī) After you adjust the brightness, the power manager will leave it alone until you reboot.ī) A default level is used at boot rather than restoring the previous level.

Sorry, this was brought up as an issue and closed in 2014.

Brightness control chromebook