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Gtk-WARNING**:cannot open display

asked 2018-04-27 12:36:48 -0500

updated 2018-05-17 01:27:13 -0500

(gedit 4364) Gtk-WARNING**:cannot open display

while opening gedit to edit /etc/environment above error is showing.tried as a root user and as super user also.

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answered 2018-04-28 14:32:26 -0500

villykruse gravatar image

An alternative

export EDITOR=/usr/bin/gedit
sudo -e /etc/environment

run man sudo for more information.

Of course, you could also use a non-GUI editor like nano, emacs, or vim.

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answered 2018-04-29 04:52:43 -0500

Period22 gravatar image

Another alternative that works in Wayland, so there's no need to change to Xorg:

gedit admin:///etc/environment
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I thought there was a way to do it with gedit, but I couldn't remember what it was.

ssieb gravatar imagessieb ( 2018-05-03 17:33:02 -0500 )edit

answered 2018-04-28 12:11:15 -0500

ssieb gravatar image

If you're using Wayland (which is the default), applications running as root cannot access the display. If you must use a graphical editor like that, then choose the "Gnome on Xorg" session when logging in. There will be a little gear icon after you click on your name before you enter your password.

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I begninner to linux environment, when i choose for "Gnome on xorg" it says user cant login.

duckfern gravatar imageduckfern ( 2018-04-29 07:22:26 -0500 )edit

I don't know why that would be happening, but use one of the other answers here instead.

ssieb gravatar imagessieb ( 2018-05-03 17:49:02 -0500 )edit

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Asked: 2018-04-27 12:36:48 -0500

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Last updated: Apr 29 '18