Ubuntu – How to disable password on Hibernate/Suspend

In Ubuntu 18.04 and newer it much more easier. In systemd is available a new mode suspend-then-hibernate. To start using this function you need to create a file /etc/systemd/sleep.conf with the next content:

[Sleep]
HibernateDelaySec=3600

Then you can test it by command:

sudo systemctl suspend-then-hibernate

you can edit HibernateDelaySec to reduce delay to hibernate.

If all works fine you can change Lid Close Action, to do it you need to edit the file /etc/systemd/logind.conf

You need to find option HandleLidSwitch=, uncomment it and change to HandleLidSwitch=suspend-then-hibernate. Then you need to restart systemd-logind service (warning! you user session will be restarted) by the next command:

sudo systemctl restart systemd-logind.service

That's all! Now you can use this nice function.

1. Open a terminal and run the following command:

   gksu gedit /usr/share/polkit-1/actions/org.freedesktop.upower.policy
   

   This opens up /usr/share/polkit-1/actions/org.freedesktop.upower.policy for editing.

2. In the org.freedesktop.upower.hibernate section, changed the the line <allow_active>yes</allow_active> to <allow_active>no</allow_active>:

   

3. Restart indicator-session-service so for the change to take effect:

   killall indicator-session-service 
   

That's it, there should no longer be a Hibernate item in the session menu.