Hello All,

I DID search this forum hoping to find some answers to my problem but I either have a case of selective blindness or something else is stopping me from finding a resolution... anyway, here it is:
I'm using my Ubuntu 10.04 client connected via SSH to a SuSE Linux server (SuSE Linux Enterprise Server 11 (x86_64) version 11 patchlevel=1).
I'm trying to run an install of WebSphere Portal but can't seem to be able to run the GUI installer.

Running xclock as root returns this error:
Error: Can't open display:
Running xhost returns this:
xhost: unable to open display ""

As far as my very limited knowledge of Linux goes, I don't have to export display while connecting from an Ubuntu client (never had to do that connecting to AIX and some others). So I think it's something on the server side that needs to be configured or run... Your help would be very appreciated!

Thanks in advance!

I believe you must export the display, something like:

export DISPLAY="hostname:0"

where "hostname" of course is your hostname. This is just a suggestion, I am NOT an expert on this at all.

Hello all,

I can now run xclock as the user that I use to connect to the server via ssh.
However, as soon as I sudo to root, xclock can't be run. See below:

voi@VoiT400:~$ ssh -Y -i ISSLCloud_private.com_rsa idcuser@<hostname>
Last login: Mon Jun 25 23:12:48 2012 from <home_router_broadcast_ip>
idcuser@<shorthostname>:~> xclock
idcuser@<shorthostname>:~> sudo bash
<shorthostname>:/home/idcuser # xclock
Error: Can't open display:
<shorthostname>:/home/idcuser # export XAUTHORITY=/home/idcuser/.Xauthority
<shorthostname>:/home/idcuser # xclock
Error: Can't open display:
<shorthostname>:/home/idcuser #

Any suggestions to fix that would be appreciated!