IBM A22 manual Standby or hibernation problems

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Solving computer problems

Solution: Check the mouse driver in Device Manager window, and make sure that the IBM PS/2 TrackPoint driver is installed.

Standby or hibernation problems

Problem: The computer enters standby mode automatically.

Solution: If the processor reaches a temperature that is too high, the computer will automatically enter standby mode to allow the computer to cool and to protect the processor and other internal components.

Problem: The computer enters standby mode immediately after POST (the standby indicator turns on).

Solution: Make sure that:

vThe battery is charged.

vThe operating temperature is within the acceptable range. Refer to “Specifications” in this Guide.

If these items are correct, have the computer serviced.

Problem: The critical low-battery error appears, and the computer immediately turns off.

Solution: The battery power is getting low. Connect the ac adapter to the computer, or replace the battery with a fully charged one.

Problem: The computer display remains blank after you take action to return from a sleep mode.

Solution: Check if an external monitor was disconnected while the computer was in standby mode. Do not disconnect the external monitor while the computer is in standby mode or hibernation mode. If no external monitor is attached when the computer resumes, the computer display remains blank and output is not displayed. This restriction does not depend on the resolution value.

Problem: The computer does not return from standby mode, or the standby indicator stays on and the computer does not work.

Solution: The computer automatically enters standby or hibernation mode when the battery is depleted. Do one of the following:

vReplace the battery with a fully charged one and then press Fn.

vConnect the ac adapter to the computer; then press Fn.

20ThinkPad® A22 Service and Troubleshooting Guide

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Contents ThinkPad A22 Service and Troubleshooting Guide Page ThinkPad A22 Service and Troubleshooting Guide Page Finding information with Access ThinkPad Iv ThinkPad A22 Service and Troubleshooting Guide Finding information with Access ThinkPad Vi ThinkPad A22 Service and Troubleshooting Guide Contents Viii ThinkPad A22 Service and Troubleshooting Guide Overview of your new ThinkPad computer Your ThinkPad at a glance Features Diskette drive External interfaceEnvironment SpecificationsSize Heat outputLithium-ion battery pack Electrical ac adapterBe gentle with your computer Important tips Be careful about where and how you workCaring for your ThinkPad computer Carry your computer properlyTake care in setting passwords Handle storage media and drives properlyOther important tips Cleaning your computer Caring for your ThinkPad computer Solving computer problems Diagnosing problems Click PC-Doctor for WindowsTroubleshooting Error messagesSolving computer problems Solving computer problems Errors without messages Password problems Power switch problemKeyboard problems TrackPoint problems Standby or hibernation problems For Windows For Windows NTSelect Intel EtherExpress PRO Adapter, and click Startup Click the Device Manager tab Clear the Auto insert notification check boxClick Power Management Click the Enable hibernation... buttonClick Advanced Computer screen problemsFor Windows 98 Click Display TypeBattery problems Hard disk drive problems Other problems Starting Bios Setup Utility Recover pre-installed software Solving computer problems To create a Recovery Repair diskette To use the Recovery Repair disketteUpgrading the hard disk drive Handling a hard disk driveUpgrading the hard disk drive Replacing the battery Getting help and service from IBM Getting help and service Getting help on the WebGetting help by fax Calling IBMTelephone numbers Country or region Language Telephone NumberGetting help and service Getting help and service Appendix A. Important safety instructions ThinkPad A22 Service and Troubleshooting Guide Modem safety information Laser compliance statement Appendix A. Important safety instructions ThinkPad A22 Service and Troubleshooting Guide Warranty Period IBM Statement of Limited Warranty Part 1 General TermsIBM Warranty for Machines Warranty Service Limitation of Liability Part 2 Country-unique Terms Governing LawCAMBODIA, LAOS, and Vietnam Hong Kong and Macau Warranty Service Following Terms Apply to ALL Emea CountriesGoverning Law Following Terms Apply to the Country SpecifiedEgypt Italy Following item is added to this paragraph Processing date data References to the Web site addressesElectronic emission notices Federal Communications Commission FCC StatementTelecommunication notices European Community Directive Conformance StatementFax Branding Industry Canada requirements AvisAvertissement Appendix B. Warranty Statement ThinkPad A22 Service and Troubleshooting Guide Trademarks ThinkPad A22 Service and Troubleshooting Guide Index ThinkPad A22 Service and Troubleshooting Guide Page Part Number 27P2172