Lenovo B450 Bedienungsanleitung PDF herunterladen (Seite 52)

Chapter 5. Troubleshooting

Computer screen 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

Fn +

↑

to make the screen brighter.

- If the power indicator is blinking, press the power

button to resume from the sleep mode.

- If the problem persists, follow the solution in the

following problem “The screen is unreadable or

distorted.”

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.

• Did you install the operating system or application

program correctly? If they are installed and

configured correctly, have the computer serviced.

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Lenovo B450 Bedienungsanleitung Seite 52