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I'm using Ubuntu 23.04 with Wayland. I use 3 extended displays, one being a small screen to be projected on a teleprompter.

Is there a way to horizontally mirror/flip a display such that looking at it in a mirror it looks oriented correctly?

This answer led me to the Mutter DBus configuration which indicates that this type of transformation seems possible but I can't figure out the incantation that would allow me to use it.

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  • Look at wlr-randr and gnome-randr.
    – meuh
    Commented May 2, 2023 at 11:04
  • gnome-randr is a neat project but unfortunately, it doesn't support horizontal mirroring. wlr-randr is for wlroots
    – fmic_
    Commented May 2, 2023 at 13:48

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