[Octave-bug-tracker] [bug #61790] task bar icon of Octave cannot be pinned properly under linux

[Hartmut]

Follow-up Comment #2, bug #61790 (project octave):

1. I have only installed Octave 6.3.0 and 7.0.90 on this computer, both by
downloading the tar.gz file of the release (or pre-release) into a folder in
/opt with user write access, and then did "configure", "make" and "make
install" there (without any sudo). I have not installed any Octave version by
the package manager on this machine at all. I have also not installed any
Octave version via flatpack or snap.

2. This is under Ubuntu 20.04 LTS linux with german locale. This Ubuntu is
quite freshly installed (a few months ago) and still more or less "vanilla".
It uses the default Gnome desktop.

3. My two corresponding .desktop files are generated "by hand" in my text
editor and look like this:


#!/usr/bin/env xdg-open

[Desktop Entry]
Version=1.0
Type=Application
Terminal=false

Name=Octave 7.0.90 (opt)
Exec=/opt/octave-7.0.90/bin/octave --gui %f
Icon=/opt/octave-7.0.90/libgui/src/icons/logo.png

StartupNotify=false
StartupWMClass=GNU Octave
MimeType=text/x-octave;text/x-matlab;


When I save the above file content to a file with the file name "Octave 7.0.90
(opt).desktop", set the execution bit, and then start it and try to pin the
icon to the Gnome task bar, then the akward behavior described in comment #0
happens. (I have exactly one other .desktop file, for Octave versions 6.3.0 in
my ./local/share/applications folder. It looks the very same, just substitute
7.0.90 by 6.3.0.)

I am not sure if this is rather a bug in Gnome and not in Octave.

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