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This question already has an answer here:

It seems like Hibernate function is not working properly on Ubuntu 18.04. I have tried with several commands like sudo pm-hibernate, and sudo systemctl hibernate etc. Nothing works.

Is hibernate also related to Hardware? My laptop RAM is 16GB and I have created the swap partition with the size of 24GB.

Any suggestion?

marked as duplicate by pomsky, Pilot6, karel, Thomas, Charles Green Mar 9 at 13:24

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    Hibernate doesn't work with Secure Boot enabled. – Pilot6 Mar 7 at 21:07
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    Thanks, @Pilot6, it's a great help. – Md Sadequr Rahman Mar 7 at 21:41