When you try to upgrade the video driver on a Windows Vista-based computer, the screen may go blank. In this situation, nothing happens when you move the mouse or when you press CTRL+ALT+DELETE. If you turn off the power and then restart the computer, the desktop is displayed correctly. However, you receive an error message that states that the newly installed driver is incompatible with Windows Vista.
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This problem occurs under the following circumstances:
| • | The driver queries Windows Vista for the available system memory. |
| • | Windows Vista issues an incorrect value in response to this query.
|
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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:
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:
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 |
|---|
| Cdd.dll | 6.0.6000.20534 | 36,864 | 10-Feb-2007 | 02:59 | x86 |
| Dxgkrnl.sys | 6.0.6000.20534 | 617,472 | 10-Feb-2007 | 01:57 | x86 |
| Update.mum | Not applicable | 1,780 | 12-Feb-2007 | 06:16 | Not applicable |
| X86_0af309c2114cd3c5703202c33c0a798a_31bf3856ad364e35_6.0.6000.20534_none_0126c938fe41a465.manifest | Not applicable | 696 | 12-Feb-2007 | 06:16 | Not applicable |
| X86_microsoft-windows-lddmcore_31bf3856ad364e35_6.0.6000.20534_none_aa4f845bff989336.manifest | Not applicable | 8,958 | 12-Feb-2007 | 06:18 | Not applicable |
Windows Vista, 64-bit versions
| File name | File version | File size | Date | Time | Platform |
|---|
| Amd64_e847462a29f0fc5392c1a0a13605ee7b_31bf3856ad364e35_6.0.6000.20534_none_f181e9749ab25533.manifest | Not applicable | 700 | 12-Feb-2007 | 06:16 | Not applicable |
| Amd64_microsoft-windows-lddmcore_31bf3856ad364e35_6.0.6000.20534_none_066e1fdfb7f6046c.manifest | Not applicable | 9,223 | 12-Feb-2007 | 06:23 | Not applicable |
| Cdd.dll | 6.0.6000.20534 | 47,104 | 10-Feb-2007 | 04:13 | x64 |
| Dxgkrnl.sys | 6.0.6000.20534 | 873,472 | 10-Feb-2007 | 02:19 | x64 |
| Update.mum | Not applicable | 1,780 | 12-Feb-2007 | 06:16 | Not applicable |
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:
816915 (http://support.microsoft.com/kb/816915/)
New file naming schema for Microsoft Windows software update packages
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684 (http://support.microsoft.com/kb/824684/)
Description of the standard terminology that is used to describe Microsoft software updates
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