Sony VGN-TT250N - Manual (Page 147)

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Customizing Your VAIO Computer
To return to Normal mode
Press the power button.
The computer returns to its normal state.
!
If you press and hold the power button for more than four seconds, your computer will turn off automatically.
✍
It takes more time to return to Normal mode from Hibernate mode than from Sleep mode.
You can use the VAIO Control Center to configure your computer to return to Normal mode when you open the LCD screen lid. This power resuming
preference will be lost if you remove both the AC adapter and the battery pack. See Setting Up Your Computer with the VAIO Control Center (page 142) .