Switching the screen image

Press fn+f4 to switch the screen image among display devices connected to the system. For example, if a monitor is connected to the computer, pressing 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 hotkey can also alternate images among other devices receiving video information from the computer.

The following video transmission types, with examples of devices that use them, are supported by the fn+f4 hotkey:

LCD (computer display)

External VGA (most external monitors)

HDMI (televisions, camcorders, DVD players, VCRs, and video capture cards with HDMI ports)

Composite video (televisions, camcorders, DVD players, VCRs, and video capture cards with composite-video-in jacks)

NOTE: Composite video devices can be connected to the system only by using an optional docking device.

38 Chapter 3 Pointing devices and keyboard