How to restart x window (xorg?) when it's dead

Question

I found my x window is dead, all the graphic application have no reaction on the mouse click,so i have to change to the tty1 to work,use the Ctrl+Alt+F1 but the previous work is still need to rework.

The command ps doesn't display the xorg's thread, so I couldn't kill it.

And when I need to go back to graphic window, I must reboot the system.

score 7 · Answer 1 · edited Apr 13 '17 at 12:23

7

From tty1 you can use the following command to restart only the GUI, without rebooting the system:

sudo service lightdm restart

or

sudo service lightdm stop
sudo service lightdm start

Another useful command in this case can be:

xkill  # or xkill -all

(See man xkill to get to know how it works) and you can create a keyboard shortcut for xkill so you don't need to go in tty1 to use it.

edited Apr 13 '17 at 12:23

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1

answered Sep 04 '13 at 14:50

Radu Rădeanu

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Should be `sudo service` not `sudo services`. :-) – Paul A Jungwirth May 19 '15 at 21:15
Failed to restart lightdm.service: Unit lightdm.service not found. – Mark Jeronimus Sep 22 '20 at 14:24
I think the command in my case is `systemctl restart display-manager` but alas it didn't help get my screen back. – Mark Jeronimus Sep 22 '20 at 14:32

How to restart x window (xorg?) when it's dead

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