The technology for the dual video configuration is called “Optimus” by NVIDIA and “Enduro” or “Dynamic Switchable Graphics” by AMD. The problem occurs because the switching software chooses the wrong GPU for AutoCAD.
To avoid this behaviour in AutoCAD 2016, apply Hotfix 4 that can be downloaded from the following link.
To avoid this behaviour in AutoCAD 2017, install the 2017.1.2 Update that can be found in the Autodesk Account: Install Updates, Add-ons, and Enhancements
If you are using an earlier or later release, apply the two possible solutions below:
Note: Some computer systems may use a master-slave video configuration. Intel HD Graphics is the master and NVIDIA/AMD is saved to it. All display signals go through the Intel chipset no matter what card is being used. With this configuration, the second option above is the only solution. The BIOS will not have a setting to disable dual graphics.
When you run AutoCAD, you get an acadres.dll error.
To solve this problem:
Note: you may also need to delete AutoCAD related registry keys, for example for AutoCAD 2017 vertical products, registry keys would be:
HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\AutoCAD\R21.0
HKEY_CURRENT_USER\Software\Autodesk\AutoCAD\R21.0
You may find it helpful to use the Microsoft Fix-It tool to assure that all AutoCAD components have been removed:https://support.microsoft.com/en-us/help/17588/fix-problems-that-block-programs-from-being-installed-or-removed
If you need further assistance with your AutoCAD Product, contact us here!
