Microsoft KB Archive/164103

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Auto Insert Notification Polling May Prevent Automatic Suspend

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Q164103

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The information in this article applies to:


 * Microsoft Windows 95
 * Microsoft Windows 95 OEM Service Release, versions 1, 2, 2.1

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SYMPTOMS
Some computers are equipped with power management features that place the computer in a suspended power state after a certain period of inactivity. If the Auto Insert Notification option is enabled for IDE CD-ROM drives on such a computer, and the computer uses the Intel PIIX 3 IDE controller chip set, the computer may not be suspended automatically.

CAUSE
The drive polling that Windows performs to determine drive status is detected by the power management components as drive activity. The drive controller reports that the drive is still in use, preventing the computer from being suspended.

RESOLUTION
This issue is resolved by the following updated file for Windows 95 and OSR2, and later versions of this file:

  CDVSD.VXD  version 4.00.1112  dated 10/17/96  16,055 bytes

STATUS
Microsoft has confirmed this to be a problem in Microsoft Windows 95 and OEM Service Release 2 (OSR2). An update to address this problem is now available, but is not fully regression tested and should be applied only to computers experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft does not recommend implementing this update at this time. Contact Microsoft Technical Support for additional information about the availability of this update.

This issue is resolved in Microsoft Windows 98.

MORE INFORMATION
Note that this issue affects computers that use the Intel PIIX 3 IDE controller chip set, and does not depend upon whether the drive itself supports a particular Media Status Notification specification.

For additional information about a related issue, please see the following article in the Microsoft Knowledge Base:

"Q161642 Auto Insert Notification May Prevent Automatic Suspend" Depending on the hardware configuration, the fixes mentioned in both of these articles may be required in order to completely resolve the problem.

For additional information about issues resolved by updates to this component, please see the following articles in the Microsoft Knowledge Base:

Q182856 "Fatal Exception 0E" Error Message When Ejecting Laptop

Q140510 Not All CD-ROM Changer Drives Visible in Windows 95

For additional information about Windows 95 updates, please see the following article in the Microsoft Knowledge Base:

"Q161020 Implementing Windows 95 Updates" Additional query words: pix pixx piix3

Keywords : kbhw osr2 win95

Issue type : kbprb

Technology : kbWin95search kbOPKSearch kbWin95 kbWin95OPKOSR2 kbWin95OPKOSR1 kbWin95OPKOSR210