Re: gnuplot and DISPLAY

[Allin C. <cot...@wf...>]

On Thu, 8 Mar 2007, Ethan A Merritt wrote:

> The thing is, I still don't quite understand why Allin is
> seeing this problem.  The original bug report was due
> to incomplete installation;  gnuplot was built to default to
> X11, but the X11 driver (gnuplot_x11) had not actually been
> installed.  The problem arose because gnulot tried to open a
> pipe to gnuplot_x11, but gnuplot_x11 wasn't there. This
> is a different case entirely.

Yes, this is a bit mysterious.  This morning I'm at the machine 
that I was accessing remotely last night, and if I try the various 
experiments you mention (e.g. unsetting DISPLAY, or setting it to 
some invalid value) I get the same results that you report: the 
x11 terminal won't work (obviously) but gnuplot does not bomb out.

My connection last night was a 2-stage ssh session: from a home 
DSL connection, behind a firewall, to server B on campus, then 
from server B to machine A, inside the campus firewall.

Now I'm on campus, and I've tried ssh'ing from A to B, then back 
from B to A (with DISPLAY unset) and running my test command: it 
works OK!

Allin Cottrell