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kscreen-doctor

Change and manipulate the screen setup from the command-line. More information: https://invent.kde.org/plasma/libkscreen.

  • Show display output information:

kscreen-doctor --outputs

  • Set the rotation of a display output with an ID of 1 to the right:

kscreen-doctor {{output.1.rotation.right}}

  • Set the scale of a display output with an ID of HDMI-2 to 2 (200%):

kscreen-doctor {{output.HDMI-2.scale.2}}