Re: after 'su -', 'Can't open display'
Martin,
Thank you for your suggestion ...
> Hi,
>
> By default the Xserver doesn't listen to the tcp port (for security
> reasons) and I'll guess thats the reason for your problem. I've added the
> following few lines to the /root/.bashrc file:
>
> if [ ! "$LOGNAME" = "root" ] ; then
> export XAUTHORITY=/home/$LOGNAME/.Xauthority
> fi
>
> This works for me.
>
... but it didn't work for me.
Please forgive my ignorance, but I don't really understand what this will
achieve.
If I execute 'su -', then $LOGNAME in the child bash shell will be 'root', the
expression '[ ! "$LOGNAME = "root ]' will evaluate to false, and so nothing will
happen, as far as I can see. So I don't see what difference it makes in my
situation.
I appreciate your help, nevertheless, so thanks all the same.
regards,
James
>
> Martin
>
> On Wed, 21 Feb 2001, James Sinnamon wrote:
>
> > Dear Debian user's,
> >
> > My apologies for a question that should have been answered over and over
> > again on this
> > list (I have searced but not been able to find an answer), or if I am
> > on the wrong list.
> >
> > When I start X Windows, using the KDE window manager, I change to root
> > (with su - )
> > for administrative tasks. However I seem unable to run X window
> > applications.
> >
> > Whatever X application I try to run, I inevitably get a message similar
> > to "... unable to open display".
> >
> > Previously on other distributions of Linux, I have used, as root :
> >
> > export DISPLAY=localhost:0.0
> >
> > and, prior to that, as the normal user that started the X window
> > session:
> >
> > xhost localhost
> >
> > This somehow doesn;t work on Debian Linux (unstable distribution).
> >
> > Would anybody be able to tell me why, and how to go about diagnosing the
> > problem,
> > or better still, what to do about it.
> >
> > TIA,
> >
> > James
> >
> > --
> > James Sinnamon sinnamon@usq.edu.au
> >
> > ph +61 7 46311490, +61 412 319669
> > PO Box 517 Darling Heights QLD 4350
> >
> >
> >
> >
> >
>
> --
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--
James Sinnamon sinnamon@usq.edu.au
ph +61 7 46311490, +61 412 319669
PO Box 517 Darling Heights QLD 4350
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