HP Notebook PC User Manual page 39

Function
Display system information.
Open Help and Support.
Decrease screen brightness.
Increase screen brightness.
Switch the screen image.
Initiate Sleep.
Initiate QuickLock.
Mute speaker sound.
Decrease speaker sound.
Increase speaker sound.
Play previous track.
Play, pause, or resume a CD, DVD, or BD.
Play next track.
Hotkey
fn+esc
fn+f1
fn+f2
fn+f3
fn+f4
fn+f5
fn+f6
fn+f7
fn+f8
fn+f9
fn+f10
fn+f11
fn+f12
Using the keyboard 27