Lenovo U410 Laptop User Guide - Page 45
Troubleshooting, Troubleshooting, Display problems
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Chapter 6. Troubleshooting Troubleshooting Display problems When I turn on the computer, nothing appears on the screen. • If the screen is blank, make sure that: - The AC adapter is connected to the computer and the power cord is plugged into a working electrical outlet. - The computer power is on. (Press the power button again for confirmation.) • If these items are properly set, and the screen remains blank, have the computer serviced. When I turn on the computer, only a white cursor appears on a blank screen. • Restore backed-up files to your Windows environment or the entire contents of your hard disk to the original factory contents using OneKey Recovery system. If you still see only the cursor on the screen, have the computer serviced. My screen goes blank while the computer is on. • Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from Sleep mode: - Touch the touchpad. - Press any key on the keyboard. - Press the power button. - Press F9 ( ) to confirm whether the backlight for the LCD screen has been turned off. 41