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

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.

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 available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.

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