Package: policykit-1 Version: 0.105-4 Desktop envs suffer from lack of hibernation option. The workaround for this is cat > /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla
[Re-enable hibernate by default in upower] Identity=unix-user:* Action=org.freedesktop.upower.hibernate ResultActive=yes [Re-enable hibernate by default in logind] Identity=unix-user:* Action=org.freedesktop.login1.hibernate;org.freedesktop.login1.handle-hibernate-key;org.freedesktop.login1;org.freedesktop.login1.hibernate-multiple-sessions;org.freedesktop.login1.hibernate-ignore-inhibit ResultActive=yes As described here: http://ubuntuhandbook.org/index.php/2018/05/add-hibernate-option-ubuntu-18-04/ -- All the best, Aleksey Midenkov @midenok
