Lenovo IdeaPad U530 Touch User Guide - IdeaPad U530 Touch - Page 31

Chapter 4. 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 power 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 you are using the AC power adapter or the battery, and the battery status indicator is on, press F12 ( ) to make the screen brighter. • If these items are properly set, and the screen remains blank, take the computer for repair. 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 content of your hard disk to its original factory content using the Lenovo OneKey Recovery system. If you still can only see the cursor on the screen, take the computer for repair. 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 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. ‐ If the problem persists, follow the solution below in "The screen is unreadable or distorted." The screen is unreadable or • Make sure that: distorted. ‐ The display device driver is installed correctly. ‐ The screen resolution and color quality are correctly set. ‐ The monitor type is correct. Incorrect characters appear • Are the operating system or programs installed on the screen. correctly? If they are installed and configured correctly, take the computer for repair. 27