Microsoft KB Archive/305862

= Game Port Does Not Work After Upgrade on Some HP Computers with Via AC97 Audio Controller =

Article ID: 305862

Article Last Modified on 12/1/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Professional x64 Edition

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This article was previously published under Q305862



SYMPTOMS
On some Hewlett-Packard computers that have a built-in audio/game controller, the game port may not function after you upgrade the computer to Windows XP. Device Manager may report a conflict between two identical game port devices. The relevant built-in audio/game controller is a Via AC97 Audio Controller.



CAUSE
This behavior can occur because the computer's basic input/output system (BIOS) reports separate Plug and Play identifiers (PnP IDs) for the audio controller and the game port. However, the driver for the audio controller also installs the game port. The second PnP ID installs the game port in a separate instance.



RESOLUTION
To resolve this behavior, contact Hewlett-Packard for information about configuring the BIOS to enable legacy audio support and MPU-401 in the BIOS.

NOTE: Configuring the BIOS incorrectly can cause the computer to become unbootable. Do not attempt to make changes to the BIOS unless you have a clear understanding of the procedures that the manufacturer provides.



STATUS
This behavior is by design.



MORE INFORMATION
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

For information about how to contact the Hewlett-Packard Co., click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

65416 Hardware and Software Third-Party Vendor Contact List, A-K

60781 Hardware and Software Third-Party Vendor Contact List, L-P

60782 Hardware and Software Third-Party Vendor Contact List, Q-Z

Keywords: kb3rdparty kbprb KB305862

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