Old issue: Input lag with multiple displays

This issue has been around in previous releases too. Pretty easy to reproduce.

  1. Start a command that requires multiple picks, like Polyline.
  2. Drag the Command Options Dialog off on the other screen.
  3. Pick your first point and move your mouse to select the second point.

There should be a significant delay in the display of the preview line.

To compare, do the same thing but have the Command Options Dialog on top of the Rhino window. The performance should be quite noticeable.

Are your two monitors running at different resolutions?
What are the details when you run SystemInfo?

My laptop display is set to Default and my external is running at 2560x1080.

Here’s the SystemInfo Report attached.sysinfo.txt (9.3 KB)

Hi @kleerkoat-

Are you still experiencing this? I’m unable to reproduce this with the steps you provided on my machine: macOS Mojave 10.14.1 running the latest RhinoWIP, with my external display (which I’m using as my primary display).