Make it executable: sudo chmod +x /home/USER/.boot-scripts/screen-off.sh Any keypress will turn it back on.ĮxecStart=/home/USER/.boot-scripts/screen-off.sh Create file /etc/systemd/system/rvice ĭescription=Blank screen after 1 min and turn it off after 2 min. Store it for example in hidden folder of your home directory /home/USER/.boot-scripts/screen-off.sh #!/bin/bashĪnd make script file executable by systemctl. You must run it from local of your machine, or do next stage of this guide. You are probably trying this command by SSH.If you get error: setterm: terminal xterm-256color does not support -blank The magic command what will do all the work: setterm -blank 1 -powerdown 2 If you want switch on that monitor again then you have run this command: xrandr -output CRT1 -autoīlank screen after 1 min and turn it off after 2 min. So if I want turn off the secondary monitor(i.e., CRT1) I have run this command: xrandr -output CRT1 -off In this output, DVI port connected monitor is labelled as DFP1 and other one as CRT1. (more details are shown here, but I have hidden it)ĬRT1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 410mm x 230mm I have two monitors (one is connected to DVI port and other to VGA port) and when I run the command I see this: Screen 0: minimum 320 x 200, current 1360 x 768, maximum 2726 x 2726ĭFP1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 304mm x 228mm At the start of each monitor details you will find monitor name set by the system. However if you want turn off only one or some of the monitor you should use xrandr.įirst run xrandr -q command, which will list all the monitors and its current display settings.

The xset command mentioned in other answers will turn off all the monitors if you have multiple monitor setup.

Shut off screen saver mac