Lenovo Lt1421 User Manual download pdf (Page 15)

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 USB

cable

is not

connected

with

the monitor

system

completely.

Be sure the USB cable is

firmly plugged into the

system and monitor.

“Connecting and turning

on your monitor” on

page 1-3

The image

quality is

unacceptable.

The power

lit and

there is

image.

indicator is not

●

There is no

power at the

outlet.

●

Try using another

electrical outlet.

“Connecting and turning

on your monitor” on

page 1-3

3-2

LT1421 Wide Flat Panel Monitor User’s Guide

The USB

cable

is loose or

disconnected

with

the

monitor

system.

●

Be sure the USB cable is

connected properly.

One or more of

the pixels

appear

discolored

This is a

characteristic

of the

LCD

technology

and is not

an LCD

defect.

If there are more than

five pixels missing,

contact the Customer

Support Center.

Appendix A, “Service and

Support,” on page A-1

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.

LT1421 wide

monitor is turned

off when

the laptop’s

power

supply is

switched

from

AC to DC

“igfxpers.exe”

turn off the

display

Step1:Press “Winkey+R”key

Step2:Input “msconfig”

Step3:Select “Startup

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.

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