Freezing of AutoCAD Products when switching between model or layout tabs

Autodesk Support

Dec 18, 2024

Products and versions covered

Users reported that when doing any of the following in AutoCAD Products:

The program hangs for a long time or freezes and does not recover.

Do one or more of the following:

Install the latest updates for AutoCAD (see Install Updates, Add-ons, and Enhancements).
Update the graphics driver (see How to update your system to the latest certified video driver).
Ensure all search paths (under OPTIONS > Files tab) exist and are reachable.
Make sure AutoCAD and the user have permission to access external reference (XREF) file locations.
Move external reference files to the local drive and update the paths.
On the command line in AutoCAD, type LAYOUTREGENCTL and set the value to 2.

Note: this command is available in AutoCAD LT starting from version 2018. In previous versions, it set to 2 and cannot be changed.

Repair the drawing file (see How to repair corrupt AutoCAD files).
Disable add-ons or plug-ins to test if they are interfering with how AutoCAD functions.
Disable Sleep mode in the Windows Power & Sleep settings, if the issue mainly occurs after the computer wakes up from sleep or being locked.
If the file is stored in a non-Microsoft network environment, move the file to the local drive, then work on it from there (see Autodesk support for non-Microsoft network).
Set the DISPSILH variable in the drawing to 0. Change the variable both within individual layout viewports, and on the Model tab.
Set the TREEDEPTH variable in the drawing to 3020.
For AutoCAD 2019 and earlier, in the AutoCAD command line, type WHIPTHREAD and set the value to 3.
Reset AutoCAD to defaults (see How to reset AutoCAD to defaults ).
Verify the computer meets the Recommended system requirements, particularly with versions that use AEC objects such as MEP and Architecture (see System requirements for AutoCAD and Toolsets).
Copy the content of the drawing inti a new one , see Optimizing the AutoCAD drawing file: Windows/Mac Clipboard Copy and Paste

AutoCAD for Mac; AutoCAD LT for Mac; AutoCAD Products;

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