The optical disk drive on a ThinkPad X300 computer that is running Windows Vista is not recognized after you perform a suspend-and-resume cycle or a hibernate-and-wake cycle on the computer

The optical disk drive on a ThinkPad X300 computer that is running Windows Vista is not recognized after you perform a suspend-and-resume cycle or a hibernate-and-wake cycle on the computer

Article ID : 949634
Last Review : March 19, 2008
Revision : 1.0
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SYMPTOMS

Consider the following scenario:

• On a ThinkPad X300 computer that is running Windows Vista, you enable the Disable optical drive option on the Power Management tab.
• You perform a suspend-and-resume cycle or a hibernate-and-wake cycle on the computer.

In this scenario, the computer’s optical disk drive is intermittently not displayed in My Computer or in Device Manager.

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CAUSE

This problem occurs because of a bug in the Ataport.sys file.

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RESOLUTION

Hotfix information

A supported hotfix is now 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. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451 (http://go.microsoft.com/?linkid=6294451)

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

Prerequisites

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) 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 item in Control Panel.

Windows Vista, x86-based versions
File name File version File size Date Time Platform
Package_1_for_kb949634~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,781 04-Mar-2008 23:58 Not Applicable
Package_2_for_kb949634~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,948 04-Mar-2008 23:58 Not Applicable
Package_3_for_kb949634~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,786 04-Mar-2008 23:58 Not Applicable
Package_4_for_kb949634~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,786 04-Mar-2008 23:58 Not Applicable
Package_5_for_kb949634~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,786 04-Mar-2008 23:58 Not Applicable
Package_6_for_kb949634~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,782 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,426 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,367 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_client~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,713 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,421 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_sc~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,423 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,425 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_server~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,431 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,422 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,430 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpe_0~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,420 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpe~31bf3856ad364e35~x86~~6.0.1.0.mum Not Applicable 1,424 04-Mar-2008 23:58 Not Applicable
X86_1e7502f9aae36f99ef9b24d02b9ec455_31bf3856ad364e35_6.0.6001.22128_none_42c6b435aaac7c9d.manifest Not Applicable 701 04-Mar-2008 23:58 Not Applicable
X86_b8b702f31ce08fd635e8f7bcb5b6b417_31bf3856ad364e35_6.0.6000.20785_none_5eeb8a16503aae6c.manifest Not Applicable 701 04-Mar-2008 23:58 Not Applicable
X86_microsoft-windows-erratamanager_31bf3856ad364e35_6.0.6000.20785_none_6c7857da880d3f2c.manifest Not Applicable 4,159 04-Mar-2008 06:49 Not Applicable
X86_microsoft-windows-erratamanager_31bf3856ad364e35_6.0.6001.22128_none_6ea276e68500747c.manifest Not Applicable 4,159 04-Mar-2008 20:20 Not Applicable
Windows Vista, x64 versions
File name File version File size Date Time Platform
Amd64_275438da08ef583a2ab9b150023551c8_31bf3856ad364e35_6.0.6001.22128_none_6da809385967bfe4.manifest Not Applicable 705 04-Mar-2008 23:58 Not Applicable
Amd64_91039e4af9aa0baa3455da2cda8e5724_31bf3856ad364e35_6.0.6000.20785_none_85fcc5ffbfa92e91.manifest Not Applicable 705 04-Mar-2008 23:58 Not Applicable
Amd64_microsoft-windows-erratamanager_31bf3856ad364e35_6.0.6000.20785_none_c896f35e406ab062.manifest Not Applicable 4,161 04-Mar-2008 06:36 Not Applicable
Amd64_microsoft-windows-erratamanager_31bf3856ad364e35_6.0.6001.22128_none_cac1126a3d5de5b2.manifest Not Applicable 4,161 04-Mar-2008 20:22 Not Applicable
Package_1_for_kb949634~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,791 04-Mar-2008 23:58 Not Applicable
Package_2_for_kb949634~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,960 04-Mar-2008 23:58 Not Applicable
Package_3_for_kb949634~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,796 04-Mar-2008 23:58 Not Applicable
Package_4_for_kb949634~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,796 04-Mar-2008 23:58 Not Applicable
Package_5_for_kb949634~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,796 04-Mar-2008 23:58 Not Applicable
Package_6_for_kb949634~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,792 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,434 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,375 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_client~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,723 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,429 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,431 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,433 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_server~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,439 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,430 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,438 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpe_0~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,428 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpe~31bf3856ad364e35~amd64~~6.0.1.0.mum Not Applicable 1,432 04-Mar-2008 23:58 Not Applicable
Windows Vista, IA-64-bit versions
File name File version File size Date Time Platform
Ia64_ee87602356e48086156fac0a0ede7469_31bf3856ad364e35_6.0.6001.22128_none_71b7219054cb0cb6.manifest Not Applicable 703 04-Mar-2008 23:58 Not Applicable
Ia64_microsoft-windows-erratamanager_31bf3856ad364e35_6.0.6001.22128_none_6ea41adc84fe7d78.manifest Not Applicable 4,160 04-Mar-2008 20:19 Not Applicable
Package_1_for_kb949634~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,786 04-Mar-2008 23:58 Not Applicable
Package_2_for_kb949634~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,791 04-Mar-2008 23:58 Not Applicable
Package_3_for_kb949634~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,791 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,425 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,426 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,429 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_server~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,434 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpesrv_0~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,426 04-Mar-2008 23:58 Not Applicable
Package_for_kb949634_winpesrv~31bf3856ad364e35~ia64~~6.0.1.0.mum Not Applicable 1,433 04-Mar-2008 23:58 Not Applicable

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STATUS

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

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MORE INFORMATION

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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APPLIES TO
• Windows Vista Business
• Windows Vista Enterprise
• Windows Vista Home Basic
• Windows Vista Home Premium
• Windows Vista Starter
• Windows Vista Ultimate
• Windows Vista Business 64-bit Edition
• Windows Vista Enterprise 64-bit Edition
• Windows Vista Home Basic 64-bit Edition
• Windows Vista Home Premium 64-bit Edition
• Windows Vista Ultimate 64-bit Edition
• Windows Vista Service Pack 1

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Keywords: 
kbexpertisebeginner kbhotfixserver kbqfe KB949634

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
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