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I've tried to hibernate my HP EliteDesk 800 G1 TWR PC using the command sudo pm-hibernate which exited with no message, error code 128.

The man page for pm-hibernate says:

A return value of 128 means that pm-action tried to put the machine in the requested power state but failed.

Trying to run the same command again hung up my system completely.

According to free -m, I have 15960 MB RAM and with a 16295 MB swap space, which I think should be sufficient.

Then I found this hardware certification page that says "Hibernate is disabled on this system".

Is there any way I could enable hibernation?

  • You could look into your dmesg output, to see what's going on when you try to hibernate it. – P.-H. Lin Oct 8 '14 at 8:06
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Maybe this post is an answer to your question, with two possibilities (TuxOnIce and uswusp): Problem with Hibernation

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