HP ProBook 4740s Notebook-PC - Manual (Page 39)

4 Keyboard and pointing devices
Using the keyboard
Identifying the hot keys
A hot key is a combination of the fn key and one of the function keys .
To use a hot key:
▲ Briefly press the fn key, and then briefly press the second key of the hot key combination.
Hotkey combination Description
fn + f1 Initiates Suspend, which saves your information in system memory. The display and other system
components turn off and power is conserved.
To exit Suspend, briefly press the power button.
CAUTION: To reduce the risk of information loss, save your work before initiating Suspend.
NOTE: If a critical battery level occurs while the computer is in Suspend, the computer initiates
Hibernation and the information stored in memory is saved to the hard drive.
fn + f2 Decreases the screen brightness level.
fn + f3 Increases the screen brightness level.
fn + f4 Switches the screen image among display devices connected to the system. For example, if a
monitor is connected to the computer,
fn + f4 alternates the screen image from computer display to
monitor display to simultaneous display on both the computer and the monitor.
Most external monitors receive video information from the computer using the external VGA video
standard. The
fn + f4 hot key can also alternate images among other devices that are receiving video
information from the computer.
fn + f5 Initiates the QuickLock security feature. QuickLock protects your information by displaying the
operating system Log On window. While the Log On window is displayed, the computer cannot be
accessed until an operating system user password or an operating system root password is
entered.
NOTE: Before you can use QuickLock, you must set an operating system user password or an
operating system root password. For instructions, refer to Help.
fn + f6 Displays charge information for all installed batteries. The display indicates which batteries are
charging and reports the amount of charge remaining in each battery.
Using the keyboard 29