Just to update.
After serveral days I suddenly find my xfce4-power-manager can not running again.
I found it is caused by dbus by exploring on Google in an ArchWiki
I use the command 'sudo update-rc.d dbus defaults' and then everything seems to be ok.
Just to update.
After serveral days I suddenly find my xfce4-power-manager can not running again.
I found it is caused by dbus by exploring on Google in an ArchWiki
I use the command 'sudo update-rc.d dbus defaults' and then everything seems to be ok.