How do I enable Autosuspend without xfce4-powermanager or sth similar?

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https://bbs.archlinux.org – Did you check the wiki on "Suspend to RAM"?  It looks like there are a few tools there that should work for your needs.https://wiki.archlinux.org/index.php/SuspendAlso, after I switched to Awesome WM and didn't have the built in functionality to shutdown/reboot, I asked the same question and was lead to using Consolekit & dbus. https://wiki.archlinux.org/index.php/ConsoleKitIn either case, you can use the "acpid" daemon to trigger suspend when a certain action  happens (ie- closing a laptop).https://wiki.archlinux.org/index.php/AcpidI'm not sure if t (HowTos)