[Octave-bug-tracker] [bug #58808] The octave in GUI mode closes immediately after the command to execute a demo script from ltfat

[Allan Fontes]

URL:
  <https://savannah.gnu.org/bugs/?58808>

                 Summary: The octave in GUI mode closes immediately after the
command to execute a demo script from ltfat
                 Project: GNU Octave
            Submitted by: allandeof
            Submitted on: Qua 22 Jul 2020 15:21:26 UTC
                Category: GUI
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: allandeof
        Originator Email: 
             Open/Closed: Open
                 Release: 5.2.0
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

Hello. I would like to count on your help to solve the following problem:

I have octave 5.2 with the ltfat library installed on ubuntu 18.04. The octave
in GUI mode closes immediately after the command to execute a demo script from
ltfat.

Thank you in advance for your help.


Machine:
Dell Vostro 5410
Intel® Core ™ i5-4210U CPU @ 1.70GHz × 4
7.7 GiB RAM
      
      Actions:

      a) Updated Ubuntu 18.04.4 LTS system.
      b) Octave 5.2 is started in GUI mode.
      c) ltfat library previously installed on the octave.
      d) ltfat library is loaded in the octave.
      e) ltfat library is started in the octave.
      f) ltfat test script of all functions is performed in octave.
      g) The test ends without errors. (The test does not use graphic
libraries)
      h) A script from the ltfat demo folder is opened in the editor:
demo_dgt.m (The script uses graphic libraries)
      i) Command to save and execute script is initiated.
      j) Octave in GUI mode closes immediately.
      k) No exit is presented.
      l) No error message is displayed.
      m) Other demo scripts generate the same error.




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