[Octave-bug-tracker] [bug #40423] crash after "Can't open display:" message

[Carnë Draug]

URL:
  <http://savannah.gnu.org/bugs/?40423>

                 Summary: crash after "Can't open display:" message
                 Project: GNU Octave
            Submitted by: carandraug
            Submitted on: Wed 30 Oct 2013 02:26:42 AM GMT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

    _______________________________________________________

Details:

I have a system that does not have an X server installed (I get a warning "X11
DISPLAY environment variable not set" at Octave startup). When a function or
script calls anything requiring a display, Octave crashes (exits with no
chance to save the work, in some situations I even get a segmentation fault,
and losing all the session history).


$ octave
warning: X11 DISPLAY environment variable not set
octave> imagesc (rand(10))
Can't open display: 
$


This happens for plot, imshow, imagesc, etc.

I understand that I can't actually get anything displayed, but if a message is
displayed it means it must be being caught somewhere, and could be dealt with
in a way that does not lose all the work.

I have tested this with a recent Octave build (cset 7900595f1533) and
graphics_toolkit set to fltk (gnuplot uses the dumb terminal).




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?40423>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/