System Settings > Power allows 'Hibernation' to be selected 'When power is critically low' but not 'When the lid is closed'

[Dominic Chambers]

After Hiberenation has been enabled in Ubuntu (by creating a '/etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla' file and restarting) you get Hibernate menus in most places, including one the System Settings > Power panel, but for some reason it is only available for critical battery scenarios, and not for lid closing.

I expect to be able to hibernate my machine when I close the lid and the power is unconnected, or when the power becomes unconnected when the lid was already closed.

[Tim Lunn (darkxst)]

This is a limitation of logind, its not possible to actaully hibernate on lid-close.

You can however override the setting on a per-system basis in /etc/systemd/logind.conf

[Dominic Chambers (dominic-chambers)]

Ah, okay, and so I guess this only works in a vanilla Ubuntu installs because they are still using ConsoleKit (which is now unmaintained) having yet to migrate to logind?

Thanks, Dominic.