kscreenctl
Manage display outputs on KDE Plasma. tldr-pages
On Linux
Linux
List all connected outputs
kscreenctl list-outputsIdentifyShow an on-screen label on each monitor to identify connector names
kscreenctl identifyIdentifyShow information about a specific output (or use active-output / primary-output)
kscreenctl DP-1IdentifySet the resolution and refresh rate of an output
kscreenctl DP-1 set-mode 1920x1080@60IdentifySet the scale of an output to 200%
kscreenctl DP-1 set-scale 200%IdentifyPlace an output to the right of another
kscreenctl HDMI-A-1 right-of DP-1IdentifyDisable a specific output
kscreenctl HDMI-A-1 set-enabled falseIdentifyTurn all outputs off through Display Power Management Signaling
kscreenctl offIdentify