How to enable Hibernate on (Kubuntu system menu -> Leave)?

[Kurious]

Hello!

When I go to the Kubuntu system menu (big blue K at the bottom left) and click on the Leave tab, all options there work except for "Hibernate" which acts as if I had clicked on "Lock". The hibernate option did work perfectly for me in this computer on both 10.x and 11.x but not now on 12.04 (Precise Pangolin). I found that on Konsole I can type

sudo pm-hibernate

to hibernate successfully, I just want it to work from the menu. Can anyone please tell me how to make the change? Thank you.

[SecretCode]

This may be relevant: How do I hibernate my computer?

Apparently hibernation was disabled by default in *buntu Precise - see Bug #812394 “Disable hibernate option by default” : Bugs : “policykit-desktop-privileges” package : Ubuntu - which I find astonishing. Also surprising that there is no simple (GUI) way to enable it, and no warning message.

[ferri]

I can confirm, too.
Command
sudo pm-hibernate
hibernate successfully.

Hibernation in KDE does not working (menu option, power management)

[Kurious]

Hello SecretCode, thank you for providing that link ("How do I hibernate my computer?"), I followed the steps and it works perfectly for me now. Thank you!

P.S. I did restart the computer before checking to see if the solution worked. Maybe it does without restarting first?

[SecretCode]

Good! (You can mark the thread solved via the "Thread tools" menu)

[foxman09]

"The document could not be saved, as it was not possible to write to /etc/polkit-1/localauthority/50-local.d/com.ubuntu.desktop.pkla.

Check that you have write access to this file or that enough disk space is available."

That's the message I get when I try this. Any help? I have 100 GB of space and I made sure I had permissions set to write. What am I supposed to do?

[SecretCode]

What editor did you use? If a console-based editor, did you run it with sudo; if gui, did you run it with kdesudo?

[PBharatK]

I get the same error. I did go to the folder and enabled permissions for all to write.However, I can't save it to that folder nor can I move that file saved in another folder, to this folder. Please guide..

"The document could not be saved, as it was not possible to write to /etc/polkit-1/localauthority/50-local.d/com.ubuntu.desktop.pkla.

Check that you have write access to this file or that enough disk space is available."

That's the message I get when I try this. Any help? I have 100 GB of space and I made sure I had permissions set to write. What am I supposed to do?

[PBharatK]

Kurious, How did you save that file to the folder. Did you change permissions somehow?

[SecretCode]

I did go to the folder and enabled permissions for all to write.

I think it's a bad idea to change permissions like this on a system folder! Instead, use a console text editor like joe or nano or vi or emacs with sudo, or a GUI editor like Kate with kdesudo.