Lenovo IdeaPad U310 Touch User Guide - Page 47

Troubleshooting, Display panel problems, Incorrect characters appear - driver

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Chapter 6. Troubleshooting The computer does not return from sleep mode and the computer does not work. • If your computer is in sleep mode, connect the AC adapter to the computer, then press any key or the power button. • If the system still does not return from sleep mode, your system has stopped responding, and you cannot turn off the computer; reset the computer. Unsaved data may be lost. To reset the computer, press and hold the power button for 4 seconds or more. Display panel problems The screen is blank. • Do the following: - If you are using the AC adapter, or using the battery, and the battery status indicator is on, press F12 ( ) to make the screen brighter. - If the power indicator is in blinking, press the power button to resume from the Sleep mode. - If the problem persists, follow the solution in the next problem "The screen is unreadable or distorted." - Press F9 ( ) to confirm whether the LCD screen has been turned off. The screen is unreadable or distorted. • Make sure that: - 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, have the computer serviced. 43

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Chapter 6. Troubleshooting
43
The computer does not
return from sleep mode and
the computer does not
work.
•
If your computer is in sleep mode, connect the AC
adapter to the computer, then press any key or the
power button.
•
If the system still does not return from sleep mode,
your system has stopped responding, and you cannot
turn off the computer; reset the computer. Unsaved
data may be lost. To reset the computer, press and
hold the power button for 4 seconds or more.
Display panel problems
The screen is blank.
•
Do the following:
- If you are using the AC adapter, or using the
battery, and the battery status indicator is on, press
F12
(
) to make the screen brighter.
- If the power indicator is in blinking, press the
power button to resume from the Sleep mode.
- If the problem persists, follow the solution in the
next problem “The screen is unreadable or
distorted.”
- Press
F9
(
) to confirm whether the LCD screen
has been turned off.
The screen is unreadable or
distorted.
•
Make sure that:
- The display device driver is installed correctly.
- The screen resolution and color quality are correctly
set.
- The monitor type is correct.
Incorrect characters appear
on the screen.
•
Are the operating system or programs installed
correctly? If they are installed and configured
correctly, have the computer serviced.