Description of problem:
I use Telegram desktop under Gnome. When using Xorg, its tray icon appears in tray pane. However, running under Wayland, it doesn't appear. (does the size of icon matter? Because under Xorg, it shows a blue line beside its tray icon. I thought maybe it is using a smaller icon than what Gnome expects.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Run Telegram desktop
2. Make sure that tray icon is enabled in settings.
Tray icon doesn't appear
Tray icon should appear
Transmission has the same problem too.
Gtk+ developers would say this is a bug in Telegram which should not use tray icons. According to https://developer.gnome.org/gtk3/stable/GtkStatusIcon.html it is deprecated since Gtk+ 3.14 (released >2 years ago). There is some controversity about this.
See also: https://bugzilla.gnome.org/show_bug.cgi?id=758677
But it doesn't seem that they are dropped completely: e.g. stardict & keepassX are still able to show a tray icon.
(Thank you for the referenced bug though. Apparently there is an alternative method to show a status icon?)
Gnome-Shell still has code for it on X11, so all X11 applications (Qt4 and Gtk+ 2 by default, Gtk+ 3 and Qt5 by environment variable) can still use GtkStatusIcon's.
For Gtk+ 3.x applications there is a workaround: specify GDK_BACKEND=x11 in your environment.
To do this, e.g. start telegram through a script with
or with this command line
But those are just workarounds and the status icon feature has already been removed from Gtk+ 4 sources.
Ah... thank you for the clarification. (so, it seems that stardict & keepassx are still being run as an X11 applictaions).
Then probably this bug can be closed. I've lost all my hope that such design decisions might change; and I don't see notifications (at least with the current design) to be able to replace tray icon.
Removing from WaylandRelated- as Christian explained, XEmbed is an X11-only technology, so applications using it need to explicitly request the X11 backend. For GTK+ applications, that would involve something like calling:
before GTK+ is initialized.
If you want to use Telegram's tray icon with GNOME and (pure) Wayland, installing https://github.com/ubuntu/gnome-shell-extension-appindicator is the way to go.
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