Bug#882792: [Pkg-xfce-devel] Bug#882792: Bug#882792: xfce4-panel: some icons not appearing in notification panel

[Julian Gilbey <jdg@debian.org>]

On Mon, Nov 27, 2017 at 08:12:44PM +0000, Julian Gilbey wrote:
> On Mon, Nov 27, 2017 at 08:17:43PM +0100, Yves-Alexis Perez wrote:
> > On Mon, 2017-11-27 at 20:03 +0100, Yves-Alexis Perez wrote:
> > > On Mon, 2017-11-27 at 18:24 +0000, Julian Gilbey wrote:
> > > > This might be a small hint as to what might be going on: the
> > > > .xsession-errors file (attached) is full of errors and warnings
> > > > related to /usr/share/themes/Xfce/gtk-3.0/gtk.css.
> > > 
> > > Was gtk-3 updated recently on your system?
> > 
> > Seems that gtk-3 broke theming again, but I'm unsure it's actually related.
> > Can you try with another theme like Arc?
> 
> Ha ha, good catch!  That's half the problem - I've just removed
> gtk3-engines-xfce, and now the window menu titles are back to
> something sensible.  My libgtk-3-0 is 3.22.24, but that's been
> installed for ages, so I don't know why it only just broke.
> 
> So the only remaining problem is the icons not appearing in the
> notification area, and removing gtk3-engines-xfce hasn't helped there,
> unfortunately.
> 
> Thanks!!
> 
>    Julian

Dear all,

I have at last come back to this bug and solved the problem to my
satisfaction, though I don't know whether this will help Lionel or
Shannon.

Xfce4 very confusingly has multiple different notification applets:

* Notification Area: This shows (for me) the keyboard layout (IBus
  preferences), the Orage calender icon and the Notes icon.

* Status Notifier Plugin: This shows the SafeEyes icon and the
  bluetooth icon.

* StatusNotifier Plugin (note the lack of a space in the name): This
  also shows the SafeEyes icon and the bluetooth icon, only a little
  larger.

Why there should be two different panel applets showing different
icons I have no idea; this seems to be a very broken design to me.
But at least I can now see all my icons!

Best wishes,

   Julian