How to purge disconnected display from settings?

[DarthZurath]

Hello.

Unfortunately I wasn't able to find the answer for this question. Is it at all possible to purge displays that were once connected from settings? They keep piling up and I'd like to purge them from the app.
Also wondering if those are stored by MacOS and thus they are retained by the app or it's purely the way app behave to keep settings in case they gonna be connected again?

[waydabber]

Hi there,

just click Forget Display under the display's General Settings/Additional settings… section.

MacOS also stores these display entries until a certain point with specific unique identifiers. The app remembers them as well in case they get reconnected. But it's not essential, so you can make them forget if it bothers you.

You can also change how long these displays are remembered:

[DarthZurath]

Damn, I was looking everywhere, but still overlooked that in additional settings. Thank you very much for such fast reply!

[waydabber]

Note: if you have a lot of displays to forget, you can let them all go in one sweep - simply set the "Remember display for at least..." to 0 days and then do a Tools/Displays.../Redetect... in the app menu. This will purge all currently not connected displays. Afterwards set the remember option back to the default.

[DarthZurath]

Useful tip. Thank you very much!