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07.21.2008 at 06:19PM PDT, ID: 23583878
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7.4

DirectX DirectDraw not available when using single monitor (opposed to dual)

Asked by nhoel in Windows Vista, Video Cards

Tags: , ,

I am running Vista Business 64-Bit, and DirectX 10.1
For complete details you can see my attached files from the directX diagnostic.

My problem is when I only have a single monitor enabled directDraw and AGP Texture Acceleration become not available.  As soon as a second monitor is enabled, all DirectX display accelerators are enabled.

All monitors are attached with DVI cables.
I have tried switching the monitors to verify that has nothing to do with it.
I have reinstalled the latest ATI Drivers numerous times (8.6 build 64790)

I recently reformatted, I did not have this problem before with the same hardware (although my video card was sent in for repairs just before reformatting).

One last note: Aero Glass will not work either even though my system rates at a 5.8 (out of 5.9) and Aero Glass normally turns on with a way lower rating.  (this may be because of this directX problem, or it may be linked to the root, that is the only reason I mention this here).Start Free Trial
Attachments:
 
DirectX Diagnostic single monitor
 
 
DirectX Diagnostic dual monitor
 
[+][-]07.21.2008 at 11:26PM PDT, ID: 22056791

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[+][-]07.22.2008 at 07:02PM PDT, ID: 22065450

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[+][-]07.23.2008 at 12:45AM PDT, ID: 22066843

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[+][-]07.23.2008 at 05:23AM PDT, ID: 22068350

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[+][-]07.23.2008 at 12:22PM PDT, ID: 22072875

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[+][-]08.04.2008 at 11:41AM PDT, ID: 22154872

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[+][-]08.04.2008 at 08:28PM PDT, ID: 22157954

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About this solution

Zones: Windows Vista, Video Cards
Tags: Sapphire, Radeon HD 3870 X2, Radeon HD 3870 X2
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Solution Provided By: nhoel
Participating Experts: 1
Solution Grade: A
 
 
 
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