Microsoft KB Archive/823827

= Your laptop does not wake from the suspend state when you open the lid =

Article ID: 823827

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
When you use a Microsoft Windows 2000-based IBM ThinkPad T30 or IBM ThinkPad T40 laptop, when you open the lid, the computer may not wake from the suspend state. The power light-emitting diode (LED) may not blink even when the lid is open. You can still use the Function (Fn) key to wake the computer successfully.



CAUSE
This problem occurs because of a synchronization issue in the Windows 2000 operation region access handler when two Peripheral Component Interconnect (PCI) operation region accesses occur at the same time. When an operation region handler is called, it transfers bytes in the operation region to and from the Advanced Configuration and Power Interface (ACPI) driver's data buffer. The ACPI driver manages the accessing of the correct bytes to read and to write a data field in an operation region.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
No prerequisites are required.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version        Size     File name -  09-Jul-2003  19:54  5.0.2195.6772  163,312  Acpi.sys



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.



MORE INFORMATION
For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New File Naming Schema for Microsoft Windows Software Update Packages

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the Standard Terminology That Is Used to Describe Microsoft Software Updates

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp5fix KB823827

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