Sony VAIO VPCF12 Series - Manual (Page 153)

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Troubleshooting >
Display
Display
Why did my screen go blank?
❑ Your computer screen may go blank if the computer loses power or enters a power saving mode (Sleep or Hibernate). If
the computer is in LCD (Video) Sleep mode, press any key to bring the computer back into Normal mode. See Using the
Power Saving Modes
(page 28) for more information.
❑ Make sure your computer is securely plugged into a power source and turned on and the power indicator light is lit.
❑ If your computer is running on battery power, make sure the battery pack is installed properly and is charged. See Using
the Battery Pack (page 20) for more information.
❑ If the display output is directed to the external display, press the Fn+F7 keys. See Combinations and Functions with
the Fn Key (page 34) for more information.
❑ The LCD backlight of your computer may have been turned off. To turn on the LCD backlight, see Using Special-function
Buttons (page 38) .