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Enable Hibernation in Ubuntu 12.04

    Many of you might have noticed that Hibernation is disabled in Ubuntu 12.04 by default because in Ubuntu,  hibernate often don’t work on new hardware models without software fixes and it would be unprofessional to provide hibernation option which will not work on some machines. That is why you do not see hibernation ability on latest Ubuntu 12.04 beta release.

    Contrary disabling entirely a working hibernation functionality which will not work on some machines is not a good practice too. Fortunately there is a workaround to tackle with this situation. Thanks to dima from Ask Ubuntu.

    To enable hibernation in Ubuntu 12.04 you need to edit policykit files, just follow these commands

    sudo gedit /etc/polkit-1/localauthority/50-local.d/com.ubuntu.desktop.pkla

    A blank gedit window will open, paste following text in edit and hit save

    [Re-enable hibernate by default]

    Now you need to restart your system, after restart you will see hibernation option.

    via~ Ask Ubuntu

    • http://www.facebook.com/jorgemtrevino Jorge M. Treviño

      Doesn’t work. Running 12.04 Desktop Final Release as of today, but didn’t work either in Beta 2.

      • http://it-diary.com/ Rizwan Asif

        This is because your system is not yet supported, it is known problem that hibernation doesn’t work on some new hardware.
        With latest Ubuntu release hibernation is disabled for all systems, this article is for systems that are supported but hibernation is not working on them because Ubuntu has disabled it on all systems.

    • Dode

      In kubuntu 12.04, the hibernate option is available, but it simply does nothing.
      With the solution posted here it works – thanks for sharing!

      Both suspend and hibernate work flawless on a ThinkPad L420.