Are you sure this is solely caused by xfce4-power-manager? I experience the problem without xfce4-power-manager. It seems the problem is the application-indicator applet here. Without it, the spaces are gone.
Are you sure this is solely caused by xfce4-power- manager? I experience the manager. It seems the problem is the indicator applet here. Without it, the spaces are gone.
problem without xfce4-power-
application-