The problem is that your X-server does not allow other users applications to
connect to it.
To solve this, you start your X-server, and type in 'xhost +' (without
quotes...), then you'll be able to start graphical application after having
su'd to another user.
Paul wrote :
> Hi,
> Whenever I su in as another users, then try to run an x application, I
> get the following message:
>
> Xlib: connection to ":0.0" refused by server
> Xlib: Client is not autorised to connect to Server
> Krite: cannont connect to X server :0.0
>
> How can I solve this? It's a pain having to log out, then in as root
> just to edit some text files, or update certain programs :(
>
> Any help appreciated.
