Turn Raspberry screen on or off

Control the screen power state of a Raspberry Pi using the vcgencmd command or wlr-randr for Wayland.

Note

To see which one you are using run loginctl show-session 1 | grep "Desktop". It will display:

Output	Technology	Configuration Paths
Desktop=lightdm-xsession	X11	/etc/xdg/lxsession/LXDE-pi/
Desktop=LXDE-pi-x	X11
Desktop=LXDE-pi-wayfire	Wayland wayfire
Desktop=LXDE-pi-labwc	Wayland labwc	/etc/xdg/labwc/ or ~/.config/labwc/

Wayland

Try it out before by running wlr-randr --output <display> --off to turn off the screen and wlr-randr --output <display> --on to turn it back on.

Run kmsprint to show all connected displays.

Set XDG_RUNTIME_DIR=/run/user/<UID> (find UID by running loginctl) and WAYLAND_DISPLAY=<identifier> (find out by running ls /run/user/111/ | grep wayland).

shell:

switch:
  - platform: shell
    name: 'Screen'
    id: screen
    command_on: 'wlr-randr --output HDMI-A-1 --on'
    command_off: 'wlr-randr --output HDMI-A-1 --off'
    command_state: |-
      if wlr-randr --output HDMI-A-1 | grep -q "Enabled: yes"; then
          echo true
      else
          echo false
      fi

X11

Try it out before by running vcgencmd display_power 0 to turn off the screen and vcgencmd display_power 1 to turn it back on.

Be sure to have dtoverlay=vc4-fkms-v3d activated.

shell:

switch:
  - platform: shell
    name: 'Screen'
    id: screen
    command_on: 'vcgencmd display_power 1'
    command_off: 'vcgencmd display_power 0'
    command_state: |-
      if vcgencmd display_power | grep -q "display_power=1"; then
          echo true
      else
          echo false
      fi

Switch Shell