Name "org.gnome.SessionManager" does not exist
Any idea why typing 'mutter --wayland' emits these warnings:
glamor: EGL version 1.4 (DRI2):
Window manager warning: Failed to set environment variable DISPLAY for gnome-session: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.gnome.SessionManager" does not exist
Window manager warning: Failed to set environment variable WAYLAND_DISPLAY for gnome-session: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name "org.gnome.SessionManager" does not exist