I have a mac mini with two monitors but I often access it remotely over VNC. Screen Sharing (and other vnc clients) allow me to select a single display (or view both at once), but neither work well because if I view a single screen then windows will open on the other one, alerts will pop up, etc. It's also basically impossible to use with both displays shown at once on a 13in laptop screen.

I'm looking for a way to software disable one of the monitors so that I can switch to a single display when I need to.


I presume that you switch between local and remote use frequently enough that disconnecting the second screen is not a viable solution?

One workaround would be to set your secondary display to mirror the main display. This would effectively reduce the 2 monitors to one logical display.

  • Correct, remembering to physically disconnect isn't really viable. I've tried mirroring but this causes a weird glitch where the screens will constantly reinitialize several times a second when connected over VNC making it unusable. – Josh Harrison Mar 12 at 19:56

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