problem regarding setting DISPLAY env variable and hostname

[Giorgos Keramidas]

On 2006-02-23 14:13, Rob <rob at roblytle.org> wrote:
> >
> > Then you have two options:
> >
> >     1. Start the X11 server in ``listen mode'', which will enable
> >        connections to port 6000:
> >
> >             $ startx -listen_tcp
>
> I tried that and then at the xterm I again gave the commands
>
> xhost +localhost
> su'd
> setenv DISPLAY localhost:0.0
>
> And I was able to run X programs as root, so that worked.
>
> >
> >     2. Use the ~/.Xauthority file of the user who started the X11
> >        session.  This can only be done by root or a sufficiently
> >        privileged user, and it works like this:
> >
> >             $ su -
> >             Password: ****
> >
> >        After you have gained superuser privileges, you can `merge' the
> >        proper credentials that will allow you to connect to the running
> >        X11 session (even though it wasn't `root' that started it), by
> >        using xauth(1):
> >
> >             csh# setenv DISPLAY localhost:0
> >             csh# xauth merge ~user/.Xauthority
> >
> >        Now you should be allowed to run X11 programs just fine.
>
> I did that and it worked!  I stopped and started Xorg and the changes seem to be permanent.
> Now I don't have to use the "xhost +localhost" and "setenv DISPLAY localhost:0.0"  any more.

Great :-)

Thanks for taking the time to post a followup, to verify that this was
indeed a fix for twhat you were seeing.