I'm on a Dell Latitude E6320, and the screen doesn't get very dim. It's way too bright even when it's dimmed as far as Ubuntu will let it. How do I dim it more?
For example, when you have this problem on a windows system, you can install a program like Dimmer (http://www.mylittlehost.com/dimmer.aspx) that overlays a black over your whole display (and you can configure the opacity, allowing you to dim the screen beyond the normal max). Is there any way to deal with a too-bright screen in linux?"