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I have lost the to me essential hibernate functionality after upgrading ubuntu. This is normal, but unfortunately I could not reenable it this time.

I tried these three previous solutions:

but no hibernation option appears.

Some additional info:

  • sudo pm-hibernate outputs nothing and appears to do nothing.

  • sudo s2disk outputs:

    s2disk: Could not open the snapshot device. Reason: Operation not permitted

I guess this is my key clue, but I didn't find any obvious explanations/solutions when googling that - I'm afraid I'm ignorant of the meaning.

There is no change to dmesg output and /var/log/pm-suspend.log does not exist after running pm-hibernate.

The machine is capable of hibernating under ubuntu 15.04 and earlier - the above options worked previously.

(I am aware this is a potential duplicate of this question, but wanted to add more detail.)

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nsandersen
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  • I have the same problem, only I can hibernate /suspend but my Lenovo z51-70 won't wake up from it. I even added the options that you provided. – Mookey Apr 24 '16 at 19:47
  • Take a look here. I just tested on both Ubuntu and Xubuntu 16.04, and it work on both. On Ubuntu I have to reboot for it to show in the menu. I will go ahead and close this as duplicate, but let me know if it fixes your problem or not, so I can reopen it. – Mitch Apr 25 '16 at 06:43
  • Take a look at a workaround I used – Obsidian Jackal Apr 27 '16 at 03:22
  • @Enkouyami Thank you. What precisely do you mean by "and add your swap partition inside." - like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash /dev/sda3" – nsandersen Apr 29 '16 at 21:31
  • What's the content of /var/log/pm-suspend.log after you run sudo pm-hibernate? (I'm aware it doesn't suspend the computer but it should generate some interesting log entries.) The output of sudo dmesg should also contain something worthwhile (only look at the entries generated since running pm-hibernate). – David Foerster Apr 29 '16 at 21:36
  • @DavidFoerster Thank you. For the first one there is unfortunately "No such file or directory". Or perhaps that is a clue in itself! The end of the dmesg output is the same before/after running sudo pm-hibernate.. or do I need to look elsewhere than at the end of the output? – nsandersen Apr 29 '16 at 21:52
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    That is extremely odd. Can you please add this crucial information to your question? Does is change anything if you reinstall pm-utils (sudo apt-get install --reinstall pm-utils)? What's in /etc/pm/config.d/ and /etc/pm/sleep.d/? – David Foerster Apr 29 '16 at 23:37
  • David - I will try, tomorrow - need sleep. @Enkouyami - tux/ice seems to hibernate and I get a progress bar when resuming, however after that it seems to switch the screen off. It might be fully booted, but just with a black screen, had that a few versions back too, but I cannot remember the solution. Thank you both. – nsandersen Apr 29 '16 at 23:46
  • @DavidFoerster Thank you! Uninstalling tux on ice and reinstalling pm-utils did it. Do you want to phrase an answer? I don't mind looking foolish :) To answer your other point if it is still interesting, /etc/pm/config.d was empty, /etc/pm/sleep.d contained the directories 10_grub-common, 10_unattended-upgrades-hibernate and novatel_3G_suspend and the file 20_custom-ehci_hcd. – nsandersen Apr 30 '16 at 21:16
  • You can write an answer based on that when/if this question is re-opened. – David Foerster Apr 30 '16 at 21:28
  • @Mitch - in view of the extra info edited in and comment trail, should it still be a duplicate? (Yes may be a valid answer.) It looks like the problem was that pm-hibernate was not properly installed from the Ubuntu 16 CD. – nsandersen Apr 30 '16 at 21:41
  • This indeed very odd. I had a 16.04 machine (T560) that was last updated on 19th April and had uswsusp working which is broken after todays update and the config file was deleted. The 15.10 (T530) machine that I upgraded today has no problems. – LiveWireBT May 01 '16 at 21:00
  • Some more investigation here from my side: I compared both /etc directories and /usr/lib/pm-utils/sleep.d in meld and couldn't find anything related after reinstalling pm-utils and uswsusp. Just before trying to reinstall I remembered that I should turn off secure boot for the way I load the installer ISO. I booted again into the system and found that hibernate works and the menu option is back again. This is reproducible on the other machine where I forgot to turn back on secure boot at some time in the past. (Yes the T560 performed hibernation on 16.04 at the 19th with secure boot on.) – LiveWireBT May 02 '16 at 23:10
  • I have the problem of "sudo pm-hibernate outputs nothing and appears to do nothing." on an Acer 4730Z as well. It too hibernated without problem on earlier versions.

    I get the following in pm-suspend.log:

    Running hook /usr/lib/pm-utils/sleep.d/000kernel-change thaw hibernate: /usr/lib/pm-utils/sleep.d/000kernel-change thaw hibernate: success.

    Which looks like it might be hibernating and immediately unhibernating. However, I do not see the disk activity I would expect if the image were actually being written to disk.

    I have enough SWAP and the 4730Z was built before secure boot.

     – Hugh Buntu Jul 24 '17 at 02:38

2 Answers2

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You need to disable Secure Boot if you are using UEFI.

With Secure Boot enabled hibernation is disabled for security reasons.

Pilot6
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    Since Ubuntu won't tell you this, judging from OP, how would one quickly check whether Secure Boot is enabled? – matanox Jun 17 '18 at 12:16
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In terminal, try sudo systemctl hibernate. If the system is able to do so, i.e. has enough swap space, it should work. Use of this command requires a password, which is not necessarily a bad thing, because it makes one pause to consider that the current system state is being recorded to a possibly-unencrypted HDD.

To make a Hibernate keyboard shortcut:

  • Press System and type key.
  • Select Keyboard settings.
  • on the Shortcuts tab, add to Custom Shortcuts the command systemctl hibernate and set a key combination. Note that sudo is not used here, though a password is requested when using the shortcut.
DrMoishe Pippik
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