If you regularly work in a dark room, and find your dimmed screen is still too bright, you may want to this open-source screen dimmer app a try.
Ever wanted to control the brightness of your multi monitor setup independently but from the same screen?
I dual-boot Ubuntu with ChromeOS on one of my Chromebooks but, annoyingly, the brightness controls don't work out of the box. Thankfully there's a super-easy solution.