Generally speaking Xfce4.10 should work fine with xfce4-power-manager 1.3.1.
What is more likely, as I said, is that there is some problem with systemd/logind policies in your system.
Generally speaking Xfce4.10 should work fine with xfce4-power-manager 1.3.1.
What is more likely, as I said, is that there is some problem with systemd/logind policies in your system.