6 TouchPad and Keyboard
Switching Displays (fn+f4)
The fn+f4 hotkey switches the image among display devices
connected to the external monitor port or the S-Video-out jack
(select models only) on the notebook. For example, if an external
monitor is connected to the notebook, pressing the
fn+f4 hotkey
multiple times alternates the image between the notebook display,
the external monitor display, and a simultaneous display on both
the notebook and the monitor.
Most external monitors receive video information from the
notebook using the external VGA video standard. The
fn+f4
hotkey can also alternate images among other devices receiving
video information from the notebook.
The following 4 video transmission types, with examples of
devices that use them, are supported by the
fn+f4 hotkey:
■ LCD (notebook display)
■ External VGA (most external monitors)
■ S-Video (televisions, camcorders, VCRs, and video capture
boards with S-Video-in jacks, on select models)
■ Composite video (televisions, camcorders, VCRs, and video
capture boards with composite-video–in jacks) when
connected to an optional docking device (select models only)
Muting System Sound (fn+f5)
Press fn+f5 to mute the system sound. Press fn+f5 again to turn off
mute.
Decreasing System Sound (fn+f6)
Press fn+f6 to decrease system sound. Hold down the hotkey to
decrease the sound level incrementally.