Lenovo ThinkPad 390X User's Reference: ThinkPad 390X - Page 131

Suspend or Hibernation Problems

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Troubleshooting Charts Suspend or Hibernation Problems Problem The computer enters suspend mode automatically. Performance degrade when the computer gets hot during use. The computer enters suspend mode immediately after POST (the suspend indicator is on). The computer turns on and immediately turns off. The computer does not return from suspend mode, or the suspend lamp stays on and the computer does not work. The LCD is blank after resuming. Your computer does not enter suspend or hibernation mode. Action The computer enters suspend mode automatically when the processor temperature reaches a certain level. This is not a defect. The processor speed might decrease under the following conditions: Use in a hot environment. High-powered processing that requires high-power consumption. This is not a defect. Make sure that: The battery pack is charged. The operating temperature is within the acceptable range. Refer to Appendix A, "Features and Specifications" on page 147. If these items are correct, have the computer serviced. The battery pack power is getting low. Connect the AC Adapter to the computer, or replace the battery pack with a fully charged one. The computer automatically enters suspend or hibernation mode when the battery power is exhausted. Do one of the following: 1. Connect the AC Adapter to the computer. 2. Replace the battery pack with a fully charged one; then press Fn. Check if an external monitor was connected before the computer entered suspend mode. Do not disconnect the external monitor while the computer is in suspend mode or hibernation mode. If no external monitor is attached when the computer resumes, the LCD remains blank and output is not displayed. This restriction does not depend on the resolution value. Check if the suspend or hibernation options are set. Make sure the hibernation function is created. (See "Creating the Hibernation Function" on page 55.) Solving Computer Problems 115

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Troubleshooting Charts
Suspend or Hibernation Problems
Problem
Action
The computer enters
suspend mode automat-
ically.
The computer enters suspend mode automatically when the processor temper-
ature reaches a certain level. This is not a defect.
Performance degrade
when the computer gets
hot during use.
The processor speed might decrease under the following conditions:
±
Use in a hot environment.
±
High-powered processing that requires high-power consumption.
This is not a defect.
The computer enters
suspend mode imme-
diately after POST (the
suspend indicator is on).
Make sure that:
±
The battery pack is charged.
±
The operating temperature is within the acceptable range. Refer to
Appendix
A, “Features and Specifications” on page
147.
If these items are correct, have the computer serviced.
The computer turns on
and immediately turns
off.
The battery pack power is getting low. Connect the AC Adapter to the computer,
or replace the battery pack with a fully charged one.
The computer does not
return from suspend
mode, or the suspend
lamp stays on and the
computer does not work.
The computer automatically enters suspend or hibernation mode when the battery
power is exhausted. Do one of the following:
1. Connect the AC Adapter to the computer.
2. Replace the battery pack with a fully charged one; then press Fn.
The LCD is blank after
resuming.
Check if an external monitor was connected before the computer entered suspend
mode.
Do not disconnect the external monitor while the computer is in
suspend mode or hibernation mode. If no external monitor is attached when
the computer resumes, the LCD remains blank and output is not displayed.
This restriction does not depend on the resolution value.
Your computer does not
enter suspend or
hibernation mode.
Check if the suspend or hibernation options are set.
Make sure the hibernation function is created. (See “Creating the Hibernation
Function” on page
55.)
Solving Computer Problems
115