To OP - what you describe is gnome-power-manager. I am setting this issue to confirmed as I see the issue too - on a machine that is capable of performing a suspend, the option is not available to automatically suspend on critical battery, at least via gnome-power-manager's GUI.
** Package changed: ubuntu => gnome-power-manager (Ubuntu) ** Changed in: gnome-power-manager (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/1015791 Title: cannot configure machine to suspend below a battery threshold To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1015791/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs