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Old 05-27-2014, 01:41 PM   #1
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gnuplot on Angstrom Linux


I installed gnuplot-4.6.5 on Beaglebone Black running Angstrom by compiling from source. On trying to plot x^2, I got the following error:

gnuplot> plot x*x   
gnuplot: unable to open display '' 
gnuplot: X11 aborted.
So I tried setting the display to :0

export DISPLAY=":0"
and retried plotting x^2.
gnuplot> plot x*x      
No protocol specified
gnuplot: unable to open display ':0'
gnuplot: X11 aborted.
Can you please help me?
Old 05-28-2014, 10:34 PM   #2
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Did you by any chance start Gnuplot in a terminal window while being root?

What is reported as terminal type when starting Gnuplot? Mine says 'wxt'. When I change it to 'x11' it still works, but the window type is different.

What is the value of the $DISPLAY variable in the shell?


Last edited by jlinkels; 05-28-2014 at 10:36 PM.


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