: Gtk-WARNING **: cannot open display:

[franziski]

When I try to launch a x program from a x-root-shell I got the following error:

 

: Gtk-WARNING **: cannot open display:

 

Any hint?

 

Thanks in advance

[anyweb]

problem solved using su - instead of su

 

for a description of

 

su

versus 

su -

 

read this [/url][url=<___base_url___>/index.php?showtopic=549][/url][url=<___base_url___>/index.php?showtopic=549]https://www.linux-noob.com/forums/index.php?showtopic=549

 

cheers

 

anyweb

[franziski]

Ok fixed!

 

Thanks to your "live help" through irc channel

(I have to use "su -" instead of "su")

 

Best regards

[anyweb]

anytime always glad to help

 

make sure to use the forums and the irc channel (EFNET #linux-noob) as often as possible :)

 

cheers

 

anyweb