New answers tagged brightness
Though I'd suggest you keep looking for a software solution (Ubuntu 14.04 LTS works well on my netbook and controls all hardware; perhaps an Lubuntu update will fix the issue), here are some other options: Electronics: Download the service manual for your chromebook, find out which pins power the LED (or cold-cathode fluorescent, on older machines) ...
Don't do that, it's a horrible idea. If you want your screen permanently darker through hardware then get a very dark anti glare screen overlay. Don't try to re-engineer your monitor unless you plan to never use it again.
If it is a laptop, it will most likely come back if you reinstall manufacturer's management tools software. The are usually full of unwanted stuff, but if you uninstall them, those on screen goodies like screen brightness indicator will go away too.
I assume your laptop is equipped with a light sensor. Have you already tried this steps: Press the Windows (Image: icon_Windows8_key.png) key + C to open your Charms.. Select the Settings charm, and then click Change PC settings.. Tap or click on PC and devices, then select Power and sleep. Locate Adjust my screen brightness automatically. If this ...
For me the answer was in another Super User question: Brightness settings gone, how do I bring it back? Now I am able to adjust the screen brightness.
If you use f.lux to adjust your display settings, those settings carry over to metro apps (or UI apps or Windows Store apps, or whatever you want to call them) as well. Not only can you adjust the color temperature (or not), you can also lower the brightness a few ticks by hitting Alt-PgDn. It won't dim things as much as Dimmer or DimScreen, but I've found ...
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