The screensaver feature makes the screen go blank after a period of no use. This option is turned off by default, but you can enable it.
To turn on the screensaver:
Press SELECT on Auto.
Type the number of minutes before it is enabled. The default is five minutes.
Press SELECT on Apply.
Your changes now apply.
If you have set the screensaver option and your screen turns blank, you can restore your desktop by moving the mouse in any direction. Although input from any keyboard key or mouse button will restore your screen, it is advised that you move the mouse instead. This is because pressing a key creates system input. This means, as an example, that if the pointer is positioned in a text file, you may insert a character in the text.