Command line utility: turn on/off display mirroring

[Glenny2lappies]

Does anyone know of a command line utility/spell to cast to turn display mirroring on/off?

(Needed to workaround Catalina's display driver issues where connected monitor is intermittently blank when waking. Know that using [system preferences > Displays > arrangement > turn mirroring on] works to refresh the monitor)

 

[robbieduncan]

Not built in, I've not used it but: https://github.com/fcanas/mirror-displays

 

[chrfr]

Does anyone know of a command line utility/spell to cast to turn display mirroring on/off?

(Needed to workaround Catalina's display driver issues where connected monitor is intermittently blank when waking. Know that using [system preferences > Displays > arrangement > turn mirroring on] works to refresh the monitor)

I don't know of a way to do it via command line, but command-F1 toggles mirroring.

 

[Glenny2lappies]

I don't know of a way to do it via command line, but command-F1 toggles mirroring.

Alas, doesn't work on my Mac. Do you know what it's mapped to (System Prefs > Keyboard > Shortcuts)?

 

[chrfr]

Alas, doesn't work on my Mac. Do you know what it's mapped to (System Prefs > Keyboard > Shortcuts)?

You may need to do command-fn-F1. I don't think it shows up as a shortcut in System Prefs.