Troubleshooting

If you have a problem setting up or using your monitor, you might be able to solve it yourself. Before calling your dealer or Lenovo, try the suggested actions that are appropriate to your problem.

Table3-2.Troubleshooting

Problem

Possible cause

Suggested action

Reference

The image

The USB cable

Be sure the USB cable is

quality is

is not connected

firmly plugged into the

unacceptable.

with the monitor

system and monitor.

 

or system

 

 

completely.

 

“Connecting and turning on your monitor” on page 1-3

The power indicator is not

lit and there is no image.

One or more of the pixels appear discolored

LT1421 wide monitor is turned

off when the laptop’s

There is no power at the outlet.

The USB cable is loose or disconnected with the monitor or system.

This is a characteristic of the LCD technology

and is not an LCD defect.

“igfxpers.exe”

turn off the display

Try using another electrical outlet.

Be sure the USB cable is connected properly.

If there are more than five pixels missing, contact the Customer Support Center.

Step1:Press “Winkey+R”key Step2:Input “msconfig” Step3:Select “Startup

“Connecting and turning on your monitor” on page 1-3

Appendix A, “Service and Support,” on page A-1

power supply is switched from AC to DC

Step4:You will see the column of “command”, find

C:Windows\system32\igfxpers.exe”, then uncheck it.

Step5:Press “Apply” Step6:Re-start the Notebook.

Getting further help

If you still can’t solve your problem, please contact the Customer Support Center. For more information on contacting the Customer Support Center, please see Appendix A, “Service and Support,” on page A-1.

3-2LT1421 Wide Flat Panel Monitor User’s Guide

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Lenovo 1452DB6 manual Troubleshooting, Getting further help

1452DB6 specifications

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