HP ProBook 4321s Notebook-PC - Manual (Page 53)

Function Hotkey
Display system information. fn+esc
Initiate Sleep. fn+f1
Decrease screen brightness. fn+f2
Increase screen brightness. fn+f3
Switch the screen image. fn+f4
Open the default e-mail application. fn+f5
Open the default Web browser. fn+f6
Mute speaker sound. fn+f7
Decrease speaker sound. fn+f8
Increase speaker sound. fn+f9
Playing previous track. fn+f10
Playing, pausing, or resuming a CD, DVD, or BD. fn+f11
Playing next track. fn+f12
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.
Using the keyboard 41