I have installed Ubuntu 11.04 with a swap space about half of my system RAM (3 GB). So the hibernate command doesn't work. With LiveCD and gparted I have resized the swap space to cover all the RAM (about 4 GB). Now the command hibernate from panel menu is not present. How can I enable it?
PS I have tried sudo gconf-editor apps/gnome_power_management but I could find can_hibernation value.