Adw.Spinner not spinning

Development
,
1

I’m writing my actual project in Vala using Adw.SpinnerPaintable, but I also get this problem when testing with Python using just Adw.Spinner.

Whenever I spawn an Adw.Spinner or set Adw.StatusPage:paintable to an Adw.SpinnerPaintable, the spinner simply remains static and never spins. Adw.SpinnerPaintable’s docs suggest the issue might be that the containing widget is not yet mapped, but this continues to happen on Adw.Spinner - which should have its own frame-clock - and despite the fact I’m recreating the spinner after presenting the app window.

I get this problem with this code:

import gi
gi.require_version("Adw", "1")
gi.require_version("Gtk", "4.0")
from gi.repository import Adw, Gtk

class App(Adw.Application):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.connect("activate", self.activate)

    def activate(self, app):
        win = Adw.ApplicationWindow(application=app)

        button = Gtk.Button()
        button.connect("clicked", self.click)

        self.box = Gtk.Box()
        self.box.append(button)

        win.set_content(self.box)
        win.present()

    def click(self, _):
        spinner = Adw.Spinner(width_request=48, height_request=48)
        spinner.set_halign(Gtk.Align.CENTER)
        spinner.set_valign(Gtk.Align.CENTER)
        self.box.append(spinner)

app = App(application_id="com.example.app")
app.run()
2

The code you provided works fine for me, could you try updating your dependencies?

3

I’m on Ubuntu Questing and I’ve freshly upgraded all APT packages and rebooted, but the spinner is still frozen. Also, the spinner does work in other apps (I’ve confirmed that NetPeek is using the same widget, and I believe Sober is as well although I’ve not seen its source code)

Edit: Come to think of it, NetPeek and Sober are both installed via Flatpak, whereas this script is obviously running system-wide. I may have corrupted installs, somehow - I’ll have to investigate further

4

The code works fine on my end as well (Fedora Silverblue 43). It’s possible it’s an Ubuntu issue, since they patch libadwaita in various ways.