Linux Dummies 9th

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Part I: Getting Your Feet Wet
Ubuntu chose to move the last three menu items (Lock screen, Log Out, and
Shut Down) out of the System menu and into a special panel applet (discussed
in the “Applet area” section of this chapter). The Shut Down applet
icon provides these options for you.
If you have your screensaver turned on and choose the Lock Screen option
from the System menu, your screensaver appears or fades to black. Then if
anyone moves the mouse or uses your keyboard, a dialog box appears with
your login name in it and a password field. You can get back to work by entering
your password. Until then, you’re safe in knowing that no one else can
mosey up to your computer and send off a joke e-mail to your boss while pretending
to be you.
If you’re logged in as the root user, the Lock Screen option doesn’t work.
The Screensaver feature is on by default in both Fedora and Ubuntu. To
change the setting, do the following:
1. Choose System➪Preferences➪Screensaver (in Ubuntu) or
Look and Feel➪Screensaver (in Fedora).
The Screensaver Preferences dialog box appears, as shown in Figure 4-2.
Figure 4-2:
The GNOME
Screensaver
Preferences
dialog box.
2. Click the Lock Screen When Screensaver Is Active check box to select
or deselect it.