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After an upgrade attempt, from 18.10 to 19.04, I found myself unable to log into Ubuntu GUI.

While it's an interesting story in itself, this forced me to consider Ubuntu Console (Ctrl+Alt+F3) as my main interface. There, I can log in and use the console normally, which is not so bad as most of my work and needs are on console.

With tmux, it actually works quite well, except for one detail : the screen never goes off.

Using tmux time out feature coupled with vlock, I can make the screen go blank (with a blinking cursor), which is the best I could achieve so far. But that's not the same as having the screen completely off.

Is there a way to turn off the screen from command line, and without being in a graphical mode like Gnome ? I could launch such command from tmux. Most of the solutions I found imply that the console is running from a graphical mode, which is not the situation I'm currently in.

Cyan
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1 Answers1

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You could try and use: 

sudo sh -c 'vbetool dpms off; read ans; vbetool dpms on'

Or other versions that I found in my Source: Turn off monitor using command line

From a personal point, I would suggest you reinstall Ubuntu...

MelcomX
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