Keyboard Shortcuts; System Functions; Display Functions - Dell Latitude C840 User Manual

NOTE: When you connect an external PS/2 keyboard or PS/2 keypad to the computer, the integrated keypad is disabled.
The keypad numbers and symbols are marked in blue on the right of the keypad keys.
To enable the keypad, press
l
To disable the keypad, press
l
NOTE: If you experience problems using a password, ensure that the numeric keypad is disabled.
To temporarily disable the keypad so that you can use the other function of a dual-function key, press
l
and the desired uppercase letter or shift function of the key.

Keyboard Shortcuts

System Functions

Opens the Windows Security window
Enables and disables the numeric keypad
Enables and disables scroll lock

Display Functions

Switches the video image to the next display in the following sequence: the integrated display, an external monitor, and both displays
simultaneously
Increases brightness on the integrated display only (not on an external monitor)
Decreases brightness on the integrated display only (not on an external monitor)
Power Management
. The light indicates that the keypad is active.
again.
and the desired key, or press