Two days ago I have install Ubuntu 22.04. I was trying to restart the gnome shell using ALT+Fn+F2. The command prompt opened but when I wrote 'r' and enter it is not restarting. The following message was coming as displayed on the image

enter image description here

What can I do now to resolve this problem?


2 Answers 2


Please enter this command:


If the above command outputs, wayland, your system is using wayland.

We have to disable wayland and enable xorg (x11). To do this,

Please go to this file

sudo nano /etc/gdm3/custom.conf

Uncomment this line. WaylandEnable=false

Reboot your system.

Voila! You can now press ALT+F2 and then press r to restart your gnome shell.


Now it should display x11.



a Gnome mailing list thread says that:

runDialog: Disable restart command on wayland

Clients can be expected to deal with the WM going away temporarily, but not the display server - so when running as wayland compositor, a restart is generally a fancy way of killing the user session, and there's little we can do about it except for preventing the user to shoot herself in the foot by throwing an error.

  • That means I cannot do anything to solve this? Jun 30, 2022 at 9:13
  • Under Wayland, gnome-shell does not have a graceful way to restart and leave the applications open. If you must restart gnome-shell then you are probably better off saving all of your work and using the menu to log out. If that's not working for some reason, the command killall -HUP gnome-shell will get it done from the command runner (Alt+F2) or terminal.
    – Daniel
    Jun 30, 2022 at 9:27

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