AutoCAD: Heidi Module Load Error: “Error Loading Heidi Module – C:\Programs Files\Autodesk\AutoCAD 2022\DRV\\acaddm16.hdi”

October 7, 2022 Jeff Arbogast

Issue:
 AutoCAD:  Heidi Module Load Error: “Error Loading Heidi Module – C:\Programs Files\Autodesk\AutoCAD 2022\DRV\\acaddm16.hdi”

This will disable Hardware Acceleration while in AutoCAD.


Causes:
This error indicates that either your Video Card and/or Video Card driver does not support DirectX 12. This can cause graphics issues. This will disable your AutoCAD hardware Acceleration.


Solution:
To resolve this issue set AutoCAD to use DirectX  11.

•    Inside of AutoCAD in the command line Type GFXDX12 and select the <Enter> Key on your Keyboard.
•    Type 0 and select the <Enter> Key on your Keyboard.

1 = On
0 = Off

•    Now restart AutoCAD and the error should no longer appear.

https://knowledge.autodesk.com/support/autocad/learn-explore/caas/sfdcarticles/sfdcarticles/How-to-make-AutoCAD-run-with-DirectX-9.html

 

About the Author

Jeff Arbogast

Manufacturing Solution Center Team Lead<br><br>Jeff is responsible for manufacturing Technical Support for both internal staff and customers. In addition to the daily activities of the support center, he helps write for the National Support Center blog, and has written online classes for the IMAGINiT training on demand site.

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