Screen problems

Most problems with the display are caused by issues with graphics drivers or configuration. Which of the topics below best describes the problem you are experiencing?

Set screen blanking time — Change the screen blanking time to save power.
Set screen brightness — Change the screen brightness to make it more readable in bright light.
The screen locks itself too quickly — Change how long to wait before locking the screen in the Screen Lock settings.
Why do things look fuzzy/pixelated on my screen? — The screen resolution may be set incorrectly.
Why does my computer not turn back on after I suspended it? — Some computer hardware causes problems with suspend.
Why does my screen go dim after a while? — The screen will dim when the computer is idle in order to save power.
My computer will not turn on — Loose cables and hardware problems are possible reasons.