In a radio player application, I want to prevent the system from suspending while a radio is playing. For that I use [gtk_application_inhibit](https://developer.gnome.org/gtk3/stable/GtkApplication.html#gtk-application-inhibit). It works well on GNOME, but on XFCE I get this GTK warning: (goodvibes:12772): Gtk-WARNING **: 10:23:57.000: Calling org.xfce.Session.Manager.Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such method “Inhibit” Interestingly, there was an issue opened in GTK in order to support the XFCE session manager, a long time ago, and support was merged back in June 2016: - https://bugzilla.gnome.org/show_bug.cgi?id=693203 - https://gitlab.gnome.org/GNOME/gtk/-/commit/3c7cd7ac23408195dc99642f4c0ef41f466541f9 After this commit, `gtk_application_inhibit ()` attempts to call the D-Bus method `org.xfce.SessionManager /org/xfce/SessionManager org.xfce.Session.Manager.Inhibit()`. However this method does not exist! So I was wondering if it's a known issue, or am I missing something? If there's no method `org.xfce.Session.Manager.Inhibit`, then what is the right way for an application to inhibit suspend on XFCE? Is it through the D-Bus service `org.freedesktop.PowerManagement /org/freedesktop/PowerManagement/Inhibit org.freedesktop.PowerManagement.Inhibit.Inhibit()`? Or `org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager.Inhibit()` on the system bus? Or something else? Thanks!