Gnome: caffeine-indicator does not show up

[Luis]

When ran from the UI nothing visually happens, but it indeed launched the processes:

```
% ps auxw | grep -i caffeine
user1 [..] /usr/bin/python3 /usr/bin/caffeine
user1 [..] /usr/bin/python3 /usr/bin/caffeine-indicator
```

However, the widget/applet does not show up on gnome's task bar as expected.

When the indicator is launched from the terminal, the only clue to a problem I can see is the failed assertion below:

```
% caffeine-indicator
/usr/bin/caffeine-indicator:184: PyGIDeprecationWarning: Since version 3.11, calling threads_init is no longer needed. See: https://wiki.gnome.org/PyGObject/Threading
  GObject.threads_init()
/usr/bin/caffeine-indicator:106: DeprecationWarning: AyatanaAppIndicator3.Indicator.set_icon is deprecated
  self.AppInd.set_icon(icon_name)

(caffeine-indicator:74110): Gtk-CRITICAL **: 17:42:15.796: gtk_widget_get_scale_factor: assertion 'GTK_IS_WIDGET (widget)' failed
```

Hope that's enough to debug this problem. Happy to provide more info too.

[Reuben Thomas (rrt)]

What desktop environment are you using? In GNOME, you'll need an extension that displays appindicators.

[Reuben Thomas (rrt)]

(Note that the messages you posted, all fixed in 2.9.7, are only warnings, not errors, and are unlikely to have anything to do with your problem.)

[Luis (lhon)]

Indeed, this was fixed in Gnome Extensions. Sorry about the noise! I don't know why, my Gnome Extensions fail to launch intermittently!

[Reuben Thomas (rrt)]

No problem, and thanks for the deprecation reports!