kscreen-doctor
Change and manipulate the screen setup. tldr-pages
On Linux
Linux
Show display output information
kscreen-doctor --outputsIdentifySet the rotation of a display output with an ID of 1 to the right
kscreen-doctor output.1.rotation.rightIdentifySet the scale of a display output with an ID of HDMI-2 to 2 (200%)
kscreen-doctor output.HDMI-2.scale.2IdentifyEnable a specific HDMI display
kscreen-doctor output.HDMI-A-1.enableIdentifyDisable a specific DisplayPort display
kscreen-doctor output.DP-2.disableIdentifySet a display as primary display
kscreen-doctor output.HDMI-A-1.primaryIdentifyDisplay help
kscreen-doctor --helpIdentify