Provide a feature to automatically connect or disconnect the built-in display based on the current group.

[liuzhcn]

I have only one external monitor in my office, which I use together with the built-in display. However, at home, I have two external monitors, and the built-in display is no longer used. I have created two groups: ‘office’ and ‘home’. I hope that when the laptop connects to two external monitors at home (via a Thunderbolt 3 dock), it will automatically turn off the built-in display, while in the office, the built-in display remains on. Currently, it seems impossible to achieve this:
1. If the built-in display is set to turn off when an external monitor is connected, the built-in display will be turned off in both scenarios.
2. If the display is set to automatically turn off, it will remain in its last state (if off, it stays off).
3. If I manually turn it off, the situation is the same as point 2.

[waydabber]

Hi there, indeed, this would be an useful addition to the app. Added an enhancement request for this: #3795

[waydabber]

Added this as a per display setting:

[WelshSpringer]

I’m trying to set up a 2017 13” MacBook with a badly damaged screen to only use an external monitor, and am able to do this very nicely with BetterDisplay using its disconnect display feature. My problem is how to make it disconnect the built in screen automatically on startup rather having to do that manually from the BetterDisplay menu every time. Is that actually possible to do?

[waydabber]

Yes, you can invoke the disconnect feature via CLI and can add a startup script to do so. Make sure the script runs after BetterDisplay is started.

/Applications/BetterDisplay.app/Contents/MacOS/BetterDisplay set -n=built -connected=off

[WelshSpringer]

Thank you, I'll give that a whizz!