Dell P129G Setup And Specifications Manual page 12

Table 2. List of keyboard shortcuts (continued)
Keys
Fn + F6
Fn + F7
Fn + F8
Fn + F10
Fn + F11
Fn + 12
Fn + Ctrl
12 Chassis overview
Primary behavior
Decrease brightness
Increase brightness
Switch to external display
Print screen
Home
End
Open application menu