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The Computer Cannot Enter Standby or Hibernate If a Direct3D-Based Screen Saver Is Running
Article ID: 306676 - View products that this article applies to.
This article was previously published under Q306676
If the 3D Flowerbox, 3D Flying Objects, 3D Pipes, 3D Text, or another Direct3D-based screen saver is running in Windows XP, the computer may not be able to enter standby or hibernation by using the timer in Power Management properties.
This issue is not video adapter-dependent.
To resolve this problem:
To work around this problem, use any other screen saver so that the computer can enter standby or hibernate.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
Advanced Configuration and Power Interface (ACPI) places the computer in standby only after the CPU has been idle for the specified period of time. When a 3D screen saver starts, the CPU is no longer idle, and the ACPI timer for standby is reset.
After applying the hotfix, the system will stop the 3D screen saver when monitor turns off. By doing so, the CPU of the system will be considered as idle so that the system can enter standby afterward. You may see the following symptoms after installing the fix: