I have never exported manually the DISPLAY variable.

I install only the basic packages (no X11 or desktop environment).
Then I install
by connecting with ssh the package

aptitude install xbase-clients

and after that I connect with:

ssh -X user at server

and run the program

squeakvm my.image &

and is shown in my local laptop but running on the remote server.

Cheers,
Miguel Cobá

On Sun, Jan 3, 2010 at 12:05 PM, Chris Muller <ma.chris.m at gmail.com> wrote:
> I am running Ubuntu Server 8.04 (no desktop).  I've installed the
> 3.10-4 VM via the included INSTALL script (after changing to root).
>
> I am able to launch an image headless just fine:
>
>  squeak -vm display=none myImage.image &
>
> Now I want to run an image and display it on my remote laptop.  I ssh
> -X into the Ubuntu server box, but when I try to launch the image:
>
>  squeak myImage.image &
>  squeak: could not find any display driver
>
> Make sure it is not a permissions issue:
>
>  sudo chmod -R 777 /usr/local/lib/squeak
>
> Make sure it looks right:
>
>  ls -l /usr/local/lib/squeak/3.10-4/vm-display-X11
>
> "-rwxrwxrwx 1 chris chris 217882 2008-11-10 18:43
> /usr/local/lib/squeak/3.10-4/vm-display-X11"
>
> Ok, it's there now with open permissions.  Try again:
>
>  squeak -vm display=X11 myImage.image &
>
> Same result.  Try exporting my DISPLAY:
>
>  export DISPLAY=192.168.0.4:0.0
>  squeak -vm display=X11 vanilla.image &
>
> Now I get a different message:
>
> could not find display driver vm-display-X11; either:
>  - check that /usr/local/lib/squeak/3.10-4/vm-display-X11.so exists, or
>  - use the '-plugins <path>' option to tell me where it is, or
>  - remove DISPLAY from your environment.
>
> Ah ha, could the problem be it is looking for a .so extension on the
> plugin?  Copy it to that name too:
>
>  cp -p /usr/local/lib/squeak/3.10-4/vm-display-X11
> /usr/local/lib/squeak/3.10-4/vm-display-X11.so
>
> I still get the same result, but it's tellling me to remove DISPLAY
> from my environment..?  Ok, done.
>
> Shoot, back to the old message:
>
>  squeak: could not find any display driver
>
> Now I try the same thing against a different server, a Ubuntu 8.04 (desktop).
>
>  xhost  myServer
>  ssh -X chris at myServer
>  squeak myImage.image &
>
> It works just fine, the image displays and operates on my laptop!  So,
> it would seem some installation problem on my Ubuntu *server* edition.
>
> I'm starting to pull my hair, anyone have any ideas?
>
>  - Chris
>
>