How To Enable Hibernation On Ubuntu 12.04

Step1: You need to check whether hibernation works in your comp. Run the following command in your terminal to test.

$ sudo pm-hibernate

If you are able to hibernate and startup your machine then you can go to the next sptep.

Step2: Run the following command in your terminal to start editing.

$ sudo gedit /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla

Fill the editor with this

[Re-enable hibernate by default]
Identity=unix-user:*
Action=org.freedesktop.upower.hibernate
ResultActive=yes

Then save and exit.


Step3: Restart your machine. You should hibernation.:)