I'm using Ubuntu 18.04.
I'm trying to view some images with eog and getting the error below
Unable to init server: Could not connect: Connection refused
(eog:736): Gtk-WARNING **: 19:38:12.816: cannot open display: :0
When I tried to run xhost +si:localuser:root,
I got this xhost: unable to open display ":0"
Also export DISPLAY=:1 didn't work
