HP EliteBook 8540w Mobile Workstation - Manual (Page 48)

Function Hotkey
Display system information. fn+esc
Initiate Sleep. fn+f3
Switch the screen image. fn+f4
Display battery information. fn+f8
Decrease screen brightness. fn+f9
Increase screen brightness. fn+f10
Activate the ambient light sensor. fn+f11
To use a hotkey command on the computer keyboard, follow either of these steps:
● Briefly press the fn key, and then briefly press the second key of the hotkey command.
– or –
● Press and hold down the fn key, briefly press the second key of the hotkey command, and then
release both keys at the same time.
Displaying system information
Press fn+esc to display information about system hardware components and the system BIOS version
number.
In the Windows fn+esc display, the version of the system BIOS (basic input-output system) is displayed
as the BIOS date. On some computer models, the BIOS date is displayed in decimal format. The BIOS
date is sometimes called the system ROM version number.
36 Chapter 3 Pointing devices and keyboard