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Troubleshooting
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Why did my computer screen go blank?
❑ Your computer screen may go blank if the computer has lost power or has entered a power saving mode (Standby or
Hibernate). If the computer is in LCD (Video) Standby mode, press any key to activate the computer screen. See Using
the Power Saving Modes (page 135) for more information.
❑ Make sure your computer is securely plugged into a power source and turned on. Make sure the power indicator shows
the power is on.
❑ If your computer is using battery power, make sure the battery is installed properly and is charged. See Using the Battery
Pack (page 24) for more information.
❑ If the display mode is set to external display, press the Fn+F7 keys. See Combinations and Functions with the Fn Key
(page 31) for more information.
Why doesn't my computer screen display a video?
If the external display is selected for the display output with the Fn+F7 keys and the external display is disconnected, you
cannot display a video on your computer screen. Stop video playback, press the Fn+F7 keys to change the display output to
the computer screen, and then restart video playback.
What should I do if my computer screen is dark?
Press the Fn+F6 keys to brighten your computer screen.