Problems With The Display And Multimedia Devices - Lenovo ThinkPad T560 User Manual
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- Manual (49 pages) ,
- Hardware maintenance manual (112 pages) ,
- Manual (36 pages)
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1. Go to Control Panel. Change the view of Control Panel from Category to Large icons or Small icons.
2. Click Keyboard.
3. Select the Hardware tab. In the Device Properties pane, make sure that you see this message:
Device Status: This device is working properly.
If keys on the keyboard still do not work, have the computer serviced.
• Problem: All or some keys on the external numeric keypad do not work.
Solution: Make sure that the external numeric keypad is correctly connected to the computer.
Problems with the display and multimedia devices
This topic includes the most common problems with displays and multimedia devices, including the
computer display, the external monitor, and audio devices.
Computer screen problems
• Problem: My screen keeps blanking when I do not want it to.
Solution:
– If your computer is preinstalled with the Windows 7 operating system, you can disable any system
timers, such as the LCD turn-off timer or the blank timer by doing the following:
1. Start Power Manager.
2. Click the Power plan tab, and then select Maximum Performance from the predefined power
plans.
– If your computer is preinstalled with the Windows 10 operating system, do the following:
1. Go to Control Panel and ensure that you view Control Panel by Category.
2. Click Hardware and Sound ➙ Power Options ➙ High performance.
3. Show the additional plans, then choose High performance.
• Problem: The screen is blank.
Solution: Do the following:
– Press the display-mode switching key
– If you are using the ac power adapter, or using the battery and the battery gauge shows that the battery
is not depleted, press the brightness-up key
– If your computer is in sleep mode, press Fn to resume from the sleep mode.
– If the problem persists, follow the solution for the following problem.
• Problem: When I turn on the computer, nothing is displayed on the screen and the computer does not
beep while starting up.
Note: If you are not sure whether you heard any beeps, turn off the computer by pressing and holding the
power button for four seconds or more. Then turn on the computer and listen again.
Solution: 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 is turned on. (Press the power button again for confirmation.)
– The brightness level of the screen is appropriately set.
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User Guide ThinkPad T560 and P50s
to bring up the image.
to make the screen brighter.
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