Can I turn off my laptop monitor manually and instantly with just a click or a simple terminal command? I just want to turn off my monitor not locking my machine. There is no dedicated turn off monitor button on my machine.
You can by using the preferences command for X server (http://systembash.com/content/how-to-turn-off-your-monitor-via-command-line-in-ubuntu/)
Pressing a key or moving the mouse will also switch the monitor on if it has been turned off. You can assign the command to a key if you like using shortcuts.
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