Lenovo ThinkPad Reserve Edition User Manual download pdf (Page 35)

Problem: When you take action to return from sleep (standby) mode, the

computer display remains blank.

Solution: Check whether an external monitor was disconnected or turned off

while the computer was in sleep (standby) mode. If you

disconnected or turned off the external monitor, connect it or turn it

on before resuming the computer from the sleep (standby) mode.

When resuming the computer from the sleep (standby) mode

without attaching the external monitor or turning it on, and the

computer display remains blank, press Fn+F7 to bring up the

computer display.

Note: If you use the Fn+F7 key combination to apply a presentation

scheme, press Fn+F7 at least three times in three seconds, and the

image is displayed on the computer screen.

Problem: The computer enters sleep (standby) mode unexpectedly.

Solution: If the processor overheats, the computer automatically enters sleep

(standby) mode to allow the computer to cool and to protect the

processor and other internal components. Also, check the settings

for sleep (standby) mode, using Power Manager.

Computer screen problems

Problem: Incorrect characters appear 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: 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’s display contains multiple thin-film transistors (TFTs). A

small number of missing, discolored, or bright dots on the screen

might exist all the time.

Solving computer problems

Chapter 3. Solving computer problems 25

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Lenovo ThinkPad Reserve Edition User Manual Page 35