No menu bar icon in Gnome 3.34 (with extension to show these)

[rmeissn]

Expected behaviour

Using the TopIcons Plus extension for gnome-shell, I expected to see a nextcloud-client icon in the gnome top panel (like the other icons, which are shown by the extension in the top panel, like Rambox).

Actual behaviour

There is no icon in the top panel. The issue started by updating from Fedora 30 to 31 and thus updating from client version 2.5.x to 2.6. I reinstalled the nextcloud-client package already.

Client configuration

Operating system: Fedora 31, 64 bit

OS language: German

Qt version used by client package (Linux only, see also Settings dialog): 5.12.5

Client package (From Nextcloud or distro) (Linux only): 2.6.1

Installation path of client: default distro path

Logs

Logs produced by nextcloud-client in journalctl:

... nextcloud[2706]: QSocketNotifier: Can only be used with threads started with QThread

I see this line several times.

[pomarec]

FYI I have the same behaviour as you but the same log as #1818

[rmeissn]

Update: Meanwhile I upgraded to Fedora 32, Nextcloud-Client v2.6.4 (using QT v5.13.2) and also tried several other gnome-shell extensions to show tray icons in the top bar. There is no change in behaviour and the Nextcloud-Client icon is still missing.

[rmader]

FTR: on Fedora, QT apps use the Wayland backend by default now. TopIcons Plus only shows legacy X11 tray icon - the now-universally-agreed-on-but-somewhat-standard successor is KStatusNotifierItem/AppIndicator and the extension for that is https://extensions.gnome.org/extension/615/appindicator-support/ - which is installed by default on Ubuntu. That should work (although in my case I see a wrong icon, which is the reason I stumbled over this bug).

[rmeissn]

The mentioned extension by @rmader works after a system reboot. Thus it seems to be a gnome-shell extension bug.