## Screensaver Preferences

A screensaver displays moving images on your screen when your computer is not being used. Screensavers also help prevent older monitors being damaged by the same image being displayed for long periods of time.

Use the Screensaver preference tool to set the type of screensaver, the time before the screensaver starts, and whether to require a password to return to the desktop.

You can modify the following settings:

Screensaver

  Select the type of screensaver to display. The preview area to the right of the list shows the how the selected screensaver will look on your screen.

  - The Blank screen screensaver displays no image and only shows a black screen.

  - The Random screensaver selects a screensaver to display from the list at random.

  Which screensavers are shown in the remainder of the list depends on your distributor or vendor.

Set session as idle after ... minutes

  If GNOME receives no input from you for this length of time (such as moving the mouse or typing), the computer is set as idle. This may affect power management (the monitor may power down for example) or instant messaging (chat applications may set your status as "away"). Use the slider to set the length of time in minutes.

Activate the screensaver when session is idle

  Select this option to have the screensaver start after the set length of time. To stop the screensaver and return to the desktop, move the mouse or press a key on the keyboard.

Lock screen when screensaver is active

  When this option is selected, the screensaver will prompt you for your password when you try to return to the desktop. For more on locking your screen, see la sezione chiamata “Blocco dello schermo”.

Screen Resolution Preferences |  | Sessions Preferences