Sony VAIO PCG-GR250 User Manual page 18

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Combinations/
Feature
Fn+ only/
LCD
(F8)
Control AV out
Fn+ (F12)
Hibernate
Fn + Esc
Standby
Some functions are not available until Windows launches.
18
Function
Toggles between LCD-only and dual LCD/TV display
modes.
Only LCD
Connect the cable before you turn on the notebook, otherwise
Fn + F8 will not work.
Provides for the lowest level of power consumption.
When you run this command, the state of the system and state
of the peripheral devices are written to the hard disk and the
system power is turned off. To return the system to its
original state, use the power button to turn on power.
Puts the system into Standby mode, a power management
state. To return the system to the active state, press any key.
LCD and external display
Only external display