Cursor performance issues in Windows 7 when hardware acceleration is off
You are running AutoCAD, AutoCAD LT or an AutoCAD-based vertical product in Windows 7 and are experiencing cursor performance issues or the cursor is jumping as if SNAP was enabled.
This issue only happens in Windows 7 and affects AutoCAD LT and all AutoCAD-based products where hardware acceleration has been turned off.
We recommend you Enable Hardware Acceleration if possible.
This is done in AutoCAD 2010 and above and AutoCAD LT 2012 and above by the following steps:
- Run the 3DCONFIG command
- Click the Manual Tune button for AutoCAD (Skip this step for AutoCAD LT)
- Check the Enable hardware acceleration button
- Click OK to exit both dialogs
If Hardware Acceleration needs to stay Disabled then these steps should be followed:
AutoCAD 2010 and AutoCAD LT 2010 and above
The first step is to disable Aero effects on Windows 7. To do this:
- Right click on your Desktop
- Click Personalize
- Select Windows 7 Basic under "Basic and High Contrast Themes
Next you should also turn off all the Visual Effects from the Performance Options dialog in Windows.
- Open Control Panel
- Search for adjust performance
- Click "Adjust the appearance and performance of Windows"
- Click "Adjust for best performance"
Finally in AutoCAD, turn off all Dynamic Input features, including dynamic prompts, by setting the DYNMODE system variable to 0