[Octave-bug-tracker] [bug #59311] Octave Directory Browser window hangs for many tens of seconds

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?59311>

                 Summary: Octave Directory Browser window hangs for many tens
of seconds
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Tue 20 Oct 2020 08:02:53 AM UTC
                Category: GUI
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Performance
                  Status: None
             Assigned to: None
         Originator Name: Ian Proudler
        Originator Email: ikp1@f2s.com
             Open/Closed: Open
                 Release: 5.2.0
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

SUMMARY
The GNU Octave Directory Browser window, on first use, hangs for many tens of
seconds then disappears. Subsequently it works OK.  


STEPS TO REPRODUCE
1. Boot system
2. Start GNU Octave.
3. Click on folder icon to the right of the "Current Directory" text field.

OBSERVED RESULT
The windows hangs for many tens of seconds then disappears. Clicking on
"Cancel" button or the window 'X' has no effect. 

After the Directory Browser window has disappeared, clicking on the folder
icon again produces the correct result.

Quitting and restarting Octave produces a similar effect except now, after the
long pause, the Directory Browser window does not disappear but instead shows
the content of the startup directory.
  

EXPECTED RESULT
Window displays the content of the directory specified by the Octave startup
settings.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version:  plasmashell 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8

ADDITIONAL INFORMATION
Kubuntu 20.04.1

Using the "Current Directory" text field/menu works as expected.

I have an Xubuntu 20.04.1 system with the same Octave version. This works as
expected. Hence it might be something to do with interacting with KDE Plasma.




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