Alienware Laptop FN Keys

M18x-R1/R2
FN F1 Suspend Mode In the suspend mode, the display and selected devices will switch off for less energy consumption
FN F2 Battery Status Meter
FN F3 Mute On/Off
FN F4 Increase Brightness
FN F5 Decrease Brightness
FN F6 Extend Desktop to switch between the various external display options available either simultaneously or separately
FN F7 Toggle between Integrated and Discrete Graphics
FN F8 External HDMI Input to switch between external HDMI input source
FN F9 Webcam On/Off
FN F10 Microsoft Mobility Center Open/Close
FN F11 AlienFX On/Off
FN F12 Touchpad On/Off

M17x-R4
FN F1 Suspend
FN F2 Battery Status Meter
FN F3 Mute On/Off
FN F4 Increase Brightness
FN F5 Decrease Brightness
FN F6 Extend Desktop to switch between the various external display options available either simultaneously or separately
FN F7 Enable or Disable Switchable Graphics
FN F8 External HDMI Input
FN F9 Webcam
FN F10 Microsoft Mobility Center
FN F11 AlienFX
FN F12 Touchpad

M17x-R3
FN F1 Suspend
FN F2 Battery Status Meter
FN F3 Mute On/Off
FN F4 Increase Brightness
FN F5 Decrease Brightness
FN F6 Extend Desktop to switch between the various external display options available either simultaneously or separately
FN F7 Toggle between Clone and Extended Modes for external monitor
FN F8 External HDMI Input
FN F9 Webcam
FN F10 Microsoft Mobility Center
FN F11 AlienFX
FN F12 Touchpad

M17x-R2
FN F1 Suspend
FN F2 Battery Status
FN F3 Mute
FN F4 Increase Brightness
FN F5 Decrease Brightness
FN F6 Extend Desktop
FN F7 Toggle between Clone and Extended Modes for external monitor
FN F9 Webcam
FN F10 Microsoft Mobility Center
FN F11 AlienFX
FN F12 Touchpad

M17x
FN F1 Suspend
FN F2 Battery Status and Battery Charge
FN F3 Mute
FN F4 Increase Brightness
FN F5 Decrease Brightness
FN F6 Extend Desktop
FN F7 Toggle between Integrated and Discrete Graphics
FN F8 CD eject
FN F9 Webcam
FN F10 Microsoft Mobility Center
FN F11 AlienFX
FN F12 Touchpad

M15x
FN F1 Suspend
FN F2 Battery Status and Battery Charge
FN F3 Mute
FN F4 Increase Brightness
FN F5 Decrease Brightness
FN F6 Extend Desktop
FN F9 Webcam
FN F10 Microsoft Mobility Center
FN F11 AlienFX
FN F12 Touchpad

M14x-R1/R2
FN F1 Extend Desktop to external monitor
FN F2 Power Settings management using the AlienFusion software available in the Alienware Command Center
FN F3 Wireless
FN F4 Increase Brightness
FN F5 Decrease Brightness
FN F6 CD eject
FN F7 Mute
FN F8 Decrease Volume
FN F9 Increase Volume
FN F10 Rewind
FN F11 Play
FN F12 Forward
FN Pause Alienware Command Center
FN PRT SCRN Enable/Disable AlienFX Illumination
FN Insert Touchpad

M11x-R3/R2/R1
FN F1  Switches the video image to the next display option (LCD/CRT switch). The options include the integrated display, an external monitor, and both displays simultaneously
FN F2 Battery
FN F3 Wireless Radio
FN F4 Increases Brightness
FN F5 Decreases Brightness
FN F7 Mute
FN F8 Decrease Volume
FN F9 Increase Volume
FN F10 Previous
FN F11 Play
FN F12 Next