(I have a similar problem to Laptop won't "hibernate" then "thaw")


I have a Toshiba Satellite Pro S500, with windows 7 and Ubuntu 14.04 in dual boot. I would like Ubuntu 14.04 to hibernate, and I can't get it to work.

It appears to hibernate to disk and shut down (power off). I come to turn my computer back on, and sometimes Ubuntu starts up as if there was no hibernation, other times it appears to resume hibernate from disk, and then freeze up, requiring a ALT+SYSRQ+B. Sudo pm-hibernate doesn't work (its essentially a long shutdown command)

My file to add the option to hibernate in the shutdown/power menu exists in /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla and the contents are this

[Re-enable hibernate by default]
[Re-enable hibernate by default for login1]
[Re-enable hibernate for multiple users by default in logind]

Output of free (took out buffers line):

            total       used       free     shared    buffers     cached
Mem:       3774016    1758200    2015816     346256      69016     902324
Swap:      4194300          0    4194300

resume=/dev/sda5 (my root partition) is added to GRUB_CMDLINE_LINUX_DEFAULT (in grub)

Any idea why it isn't working? Is my computer not compatible? Swap shouldn't be the issue. Let me know if you want any logs, photos, etc

I would rather not have to use TuxOnIce

1 Answer 1


Probably your machine doesnt support hibernation. Please test your machine by

Ctrl+Alt+T and then sudo pm-hibernate

Your machine should hibernate. Start your machine up after hibernation and observe if it misbehaves or if it returns to the point where you were, and if it returns the windows you had open before hibernation. If it doesn't do so, then I advise you don't keep on trying, as your hardware would have shown it doesn't support hibernation. However, if it works just fine after sudo pm-hibernate, then go to this file:

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

..and check if the following lines exist:

[Re-enable hibernation]

Edit them in if they are not there. After this, restart your machine, and then hibernate. Hibernation is bound to work after this.

  • Running sudo pm-hibernate does nothing. Not going to bother hibernation, I never use it anyway :)
    – user328898
    Sep 29, 2014 at 20:52
  • Are you talking about the case where the hardware doesn't support hibernation or the software (Ubuntu) doesn't support hibernation of this hardware? If the latter - please be exact, because this is misleading.
    – luke1985
    Mar 2, 2016 at 9:05

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