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$DISPLAY variable empty after SSHing
- From: mcoughlin <michael dot w dot coughlin at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Mon, 3 Aug 2009 18:39:06 -0700 (PDT)
- Subject: $DISPLAY variable empty after SSHing
This may be confusing because I have to SSH twice to reach the computer I
On my home computer, I begin by starting the X server. I run the command:
bash-3.2$ echo $DISPLAY
And so it seems to be working fine. I then do:
ssh -X computer #2
Warning: untrusted X11 forwarding setup failed: xauth key data not generated
Warning: No xauth data; using fake authentication data for X11 forwarding.
And that is returned.
ssh -Y computer #2 returns no errors.
When I do
[mcoughlin@lisa ~]$ echo $DISPLAY
is returned for logging in with either the -X or -Y method.
When I finally log into my work computer with either the -X or -Y method,
-bash-3.2$ echo $DISPLAY
returns nothing. And so when I attempt to use octave to plot,
gnuplot: unable to open display ''
gnuplot: X11 aborted.
Obviously nothing happens.
Can someone give me a clue?
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