sudo vi /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla
에 아래 추가[Re-enable hibernate by default] Identity=unix-user:* Action=org.freedesktop.upower.hibernate ResultActive=yes
sudo vi /etc/polkit-1/localauthority/50-local.d/com.ubuntu.disable-suspend.pkla
[Disable suspend by default] Identity=unix-user:* Action=org.freedesktop.upower.suspend ResultActive=no