Underscan question

[nerdhaze]

I’m working on a project where the panel is larger that the opening, and I’m trying to confine the image to the opening size. The non-pro version I’m running defaults to a virtual 16:9 which letterboxes on my 4:3 panel. What I’m hoping is that maybe the pro version would allow setting a virtual 4:3 that would also ‘underscan’ that way. I hope that makes sense. I’m running macOS 26 on a Mac Studio, and the display is a raw display using a separate driver board with an HDMI out to the Mac.

[waydabber]

Yes, you can create a virtual screen, then use the "Stream Virtual Screen" function to stream its content to the real display you have in the setup and use Zoom/Underscan to change the display size.

Alternatively you can also try forcing an underscan slider in Image Adjustments (under the display's app menu settings), with some connection that works natively without a virtual screen.

Let me know if this doesn't work.