How to kill X server using a key combination?

Question

Is there a way to kill the current X server using a keyboard combination?

Is it possible to do so without having sudo permissions?

You have first to set that combination, indeed. Otherwise you can always switch to tty1 with [Ctrl]+[Alt]+[F1] and then kill it with killall X. — dadexix86, Nov 16 '15 at 14:01
Yup. Considered some other posts as duplicate. If the OP know about the key combo then it would have been one. As it is I added a link to a similar answer in my post. I could understand a VTC dup though. — Hennes, Nov 16 '15 at 14:28

Hennes · Accepted Answer · 2017-05-25T11:47:14.840

Yes, it is possible. In the past the key combinationCtrl Alt backspace was used to kill the X-server.

However:

This no longer seems to be the default on many modern installations. You might have to re-enable this by editing a config file.
Many modern systems also enable X out of the box and restart it once it terminates. In that case you would kill the x server (and possibly many running programs you started), but a fresh one would start up again.

This post has answers on how to enable the key combination.

Especially the answer "13.10+, type the following on the terminal: dpkg-reconfigure keyboard-configuration" seems relevant.

(That should trigger this screen:)

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