29Latitude Keyboards Hot Key DefinitionKeyboard ShortcutsFn+F1 – Standby Puts the system into Standby (S3) - doesnot wake the system.Fn+F3 – Scroll lock Used as Scroll Lock key.Fn+F5 – Touchpad andStick Enables/disables the Touchpad andStick. The hot key cycles through thefollowing states when pressed: E7440:Touchpad disabled (Stick enabled) ->Stick disabled (Touchpad enabled) ->Touchpad and Stick disabledE7240: Touchpad disabled -> TouchpadenablesdFn+F8 – LCD andProjector display Determines video output to LCD andexternal Video device(s) when attachedand display(s) present. While runningthe OS, the scan-code is passed fromthe BIOS to the OS and will cyclethrough the following states whenpressed: Computer only -> Duplicate ->Extend -> Projector only – based onpriority see reference below (example:LCD only -> duplicate LCD & DP ->extended LCD & DP -> DP only). Whenin DRMK/DOS, the video only cyclesthrough attached devices one at a time,not extended (example: LCD only -> DPonly -> DVI only -> VGA only).Keyboard ShortcutsFn+Home – SysRq(System Request) Used as SysRq key.Fn+End – Print Screen Used as Print Screen key.Fn+Insert – Pause Used as Pause key.Fn+UpArrow –Brightness Increase Increases the stepping of LCD brightnessfor each press unless maximum isreached.Fn+DownArrow –Brightness Decrease Decreases the stepping of LCDbrightness for each press unlessminimum is reached.Fn+RightArrow – KBIllumination/Backlight Determines the KeyboardIllumination/Backlight brightness levels.The hot key cycles through thefollowing brightness states whenpressed: Disabled, 25%, 50%, 75%,100%.