Gtk-WARNING **: cannot open display: :0.0

[krishnamohan]

When I become root and try to run gedit, I get the error:

No protocol specified

(gedit:2198): Gtk-WARNING **: cannot open display: :0.0


This does not happen from my user profile....xhost + actually solves the issue....so I guess I just need to add the host root to the list of hosts allowed to access the x server...

I try xhost +root......but that does not work....

how do I....?????

[Locutus_of_Borg]

try putting

export DISPLAY=:0.0

into your /root/.bashrc

create the file if it does not exist

if I recall, thats what fixed the same problem i was having

[krishnamohan]

Tried that..not working....

Besides, sometimes when I switch on the comp, I see just two dots on the top part of the screen..and I have to restart to bring everything back to normal..

[krishnamohan]

I got the following from google..it seems to work..

echo $DISPLAY # you'll be needing this value 3 lines below
sudo -i # or "su -" on older Slackwares
xauth merge ~alien/.Xauthority # use your own username here instead of "alien"
export DISPLAY=:0.0 # use the value of DISPLAY you've seen 3 lines before

I still have to wait and see if I still get the problem at startup.......

[barnex]

instead of:

sudo su
gedit

(which I assume you did), try:

sudo gedit

which should work.

[Yellow Pasque]

Use gksu for graphical applications....

gksu gedit

[Saiko Berry]

Warnings dont matter. Get used to them.
When it says ERROR, then you care.