Chapter 4. Troubleshooting; Display Problems - Lenovo YOGA C930 Series User Manual

Chapter 4. Troubleshooting

This chapter provides information about what to do if you experience a problem with your
computer.


Display problems


When I turn on the computer, nothing appears on the screen.
Make sure that:
• The ac power adapter is connected to the computer and plugged into a working electrical outlet.
• The computer power is on. (Press the Power button again for confirmation.)
• The brightness level of the screen is appropriately set.
If these items are correctly set, yet the screen remains blank, have the computer serviced.

When I turn on the computer, only a white cursor appears on a blank screen.
• Turn off the computer, and then turn it on again.
• If the problem persists, restore backed-up files to your Windows environment or the entire contents of your
hard disk to its original factory contents using the Windows recovery system. If you still see only the cursor
on the screen, have the computer serviced.

The screen goes blank while the computer is on.
Your screen saver or power management may be enabled. Do one of the following to resume
from sleep mode:
• Press any key on the keyboard. (Notebook mode only)
• Press the Power button.

The screen is blank.
Do the following:
• If you are using the ac power adapter or the battery pack, and the battery status indicator shows that the
battery is not depleted, press F12 to make the screen brighter.
• If the system status indicator is blinking, press the Power button to resume from sleep mode.
• If the problem persists, follow the solution in the next problem "The screen is unreadable or distorted."

The screen is unreadable or distorted.
Make sure that:
• The screen resolution and color quality are correctly set.
• The monitor type is correct.
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