Lenovo ThinkPad Edge E430 (English) User Guide - Page 145

External monitor problems, Problem, Solution, Personalize, Display, Change display settings

Page 145 highlights

- 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: The screen is unreadable or distorted. Solution: Make sure that: - The display device driver is installed correctly. - The screen resolution and color quality are correctly set. - The monitor type is correct. To check these settings, do the following: 1. Right-click on the desktop, and click Personalize. 2. Click Display at the left. 3. Select Change display settings. Check whether the screen resolution is correctly set. 4. Click Advanced Settings. 5. Click the Adapter tab. 6. Make sure that the correct device driver name is shown in the adapter information window. Note: The device driver name depends on the video chip that has been installed on your computer. 7. Click the Properties button. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. Check the Device status box and make sure that the device is working correctly. If not, click the Troubleshoot button and follow the instructions on the screen. 8. Click the Monitor tab. Check whether the color quality is correctly set, and make sure that the other information also is correct. 9. Click the Properties button. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. Check the Device status box and make sure that the device is working correctly. If not, click the Troubleshoot button and follow the instructions on the screen. • Problem: Incorrect characters are displayed on the screen. Solution: Did you install the operating system or application program correctly? If they are installed and configured correctly, have the computer serviced. • Problem: The screen stays on even after you turn off your computer. Solution: Press and hold the power button for four seconds or more to turn off your computer; then turn it on again. • Problem: Missing, discolored, or bright dots appear on the screen every time you turn on your computer. Solution: This is an intrinsic characteristic of the TFT technology. Your computer display contains multiple thin-film transistors (TFTs). A small number of missing, discolored, or bright dots on the screen might exist all the time. External monitor problems • Problem: The external monitor is blank. Solution: To bring up the image, press F6 and select the desired monitor. If the problem persists, do the following: 1. Connect the external monitor to another computer to make sure that it works. 2. Reconnect the external monitor to your computer. 3. Refer to the manual shipped with the external monitor to check the resolutions and refresh rates that are supported. Chapter 9. Troubleshooting computer problems 127

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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
: The screen is unreadable or distorted.
Solution
: Make sure that:
The display device driver is installed correctly.
The screen resolution and color quality are correctly set.
The monitor type is correct.
To check these settings, do the following:
1. Right-click on the desktop, and click
Personalize
.
2. Click
Display
at the left.
3. Select
Change display settings
. Check whether the screen resolution is correctly set.
4. Click
Advanced Settings
.
5. Click the
Adapter
tab.
6. Make sure that the correct device driver name is shown in the adapter information window.
Note:
The device driver name depends on the video chip that has been installed on your computer.
7. Click the
Properties
button. If you are prompted for an administrator password or confirmation, type
the password or provide confirmation. Check the
Device status
box and make sure that the device
is working correctly. If not, click the
Troubleshoot
button and follow the instructions on the screen.
8. Click the
Monitor
tab. Check whether the color quality is correctly set, and make sure that the other
information also is correct.
9. Click the
Properties
button. If you are prompted for an administrator password or confirmation, type
the password or provide confirmation. Check the
Device status
box and make sure that the device
is working correctly. If not, click the
Troubleshoot
button and follow the instructions on the screen.
Problem
: Incorrect characters are displayed on the screen.
Solution
: Did you install the operating system or application program correctly? If they are installed and
configured correctly, have the computer serviced.
Problem
: The screen stays on even after you turn off your computer.
Solution
: Press and hold the power button for four seconds or more to turn off your computer; then
turn it on again.
Problem
: Missing, discolored, or bright dots appear on the screen every time you turn on your computer.
Solution
: This is an intrinsic characteristic of the TFT technology. Your computer display contains
multiple thin-film transistors (TFTs). A small number of missing, discolored, or bright dots on the screen
might exist all the time.
External monitor problems
Problem
: The external monitor is blank.
Solution
: To bring up the image, press F6 and select the desired monitor. If the problem persists, do
the following:
1. Connect the external monitor to another computer to make sure that it works.
2. Reconnect the external monitor to your computer.
3. Refer to the manual shipped with the external monitor to check the resolutions and refresh rates that
are supported.
Chapter 9
.
Troubleshooting computer problems
127