Sony PCG-VX89P - Manual (Page 109)

Using Computer Monitors and Projectors
109
To switch the display mode using the Display Properties settings
1 Right-click the desktop, and click Properties from the drop-down list. The
Display Properties dialog box appears.
2 Click the Settings tab, and then click Advanced. The Intel Graphics
Controller Properties Screen dialog box appears.
Shortcut keys Result
Fn+ /
(F7)
Toggles between the LCD, a connected external display
(projector or computer monitor), and both the LCD and
external display.
Select one display at a time.Connect the cable before you turn
on the computer, otherwise Fn+F7 will not work.
Intel Graphics Controller Properties screen
LCD