Ubuntu: Enabling Hibernate

Hibernate is disabled by default on Ubuntu. To enable Hibernate in System Tray menu, please do as following:

1). Modify the permission of the directory below.

sudo chmod 755 -R /var/lib/polkit-1/

2). Open the file com.ubuntu.enable-hibernate.pkla or create it if it does not exist.

sudo nano /var/lib/polkit-1/var/lib/polkit-1/com.ubuntu.enable-hibernate.pkla

Add the following lines:

[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
ResultActive=yes

3). Restart your computer



Reference
http://ubuntuhandbook.org/index.php/2014/04/enable-hibernate-ubuntu-14-04/