Ubuntu恢復Hibernate功能

1. 用指令進入休眠sudo pm-hibernate
2. 恢復休眠選單
    sudo vi /etc/polkit-1/localauthority/50-local.d/
    com.ubuntu.enable-hibernate.pkla

    [Enable Hibernate]
    Identity=unix-user:*
    Action=org.freedesktop.upower.hibernate
    ResultActive=yes