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Article ID: 315502 - Last Review: May 18, 2007 - Revision: 1.3

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This article was previously published under Q315502

SYMPTOMS

When you return your computer from standby or suspend, your Universal Serial Bus (USB) keyboard may not function. This problem may occur on computers that use the Intel ICH2 chipset for USB functionality.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389  (http://support.microsoft.com/kb/322389/EN-US/ ) How to Obtain the Latest Windows XP Service Pack
The English version of this fix should have the following file attributes or later:
   Date         Time   Version      Size    File name
   ----------------------------------------------------
   30-Jan-2002  18:07  5.1.2600.28  19,200  Usbuhci.sys
				

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.

MORE INFORMATION

If you configure your Windows XP-based computer to wake on input from a USB device (the keyboard, in this case), the keyboard may remain inactive after you resume the computer from standby or suspend. The USB port remains unusable after this problem occurs. In Device Manager, under the Universal Serial Bus Controller branch, you see an "Unknown" device without an exclamation point. The device status is "No Drivers are installed for this device." Also, no Human Input Devices are listed in Device Manager.

APPLIES TO
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
Keywords: 
kbhotfixserver kbqfe kbbug kbfix kboswin2000fix kbwinxpsp1fix KB315502
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