Sony Vaio PCG-GRX315MP Instruction & Operation Manual page 34

Using your notebook
Combinations and functions with the <Fn> key
Combinations/Feature
<Fn> +
<Fn> +
<Fn> +
<Fn> +
<Fn> +
<Fn> +
<Fn> +
* This function can only be used by the first user to log in. It will not work if you have switched to another user account.
(ESC): Standby
(F3): speaker switch
(F4): speaker volume
(F5): brightness control
/ (F7)*: switch to the external display
/ (F8)*
(F12): Hibernate
Functions
Puts the system into Standby mode, a power management state. To return
the system to the active state, press any key.
Toggles the built-in speaker on and off.
Adjusts the built-in speaker volume.
To increase volume, press <Fn>+<F4> and then
To decrease volume, press <Fn>+<F4> and then
Adjusts the brightness of the LCD.
To increase lightness intensity, press <Fn>+<F5> and then
To decrease light intensity, press <Fn>+<F5> and then
Toggles between the LCD, external display (connected to the monitor
connector) and both LCD and external display.
Toggles between the LCD and both LCD and TV.
Provides for the lowest level of power consumption. When you execute this
command, the states of the system and 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 switch to turn on the power.
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