I am new to Ubuntu Linux. I was trying to disable the GUI with one of the following commands_

sudo telinit 3 (OR) sudo systemctl stop lightdm.

After typing one of these commands, the GUI stopped but there was no terminal display and cannot type any command. Only show the blink of underscore "_". Please help me how to solve it. Thanks.


By default Ubuntu 16.04LTS has multiple virtual consoles (VCs) and the graphical user interface would normally run on VC7.

Try switching with Ctrl+Alt+F1 or try with one of the other function keys (F2..F6).

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