F27. I ran a new laptop battery down to 4% (as claimed by gnome) and my laptop didn't auto-suspend, nor hibernate.
In settings / power, the only option for battery power these days seems to be to automatically suspend after a set time period; not at a certain battery level.
So
a) did I imagine it that earlier fedoras used to have this feature? b) any way I can enable auto-suspect on low battery for F27?