It's a Linux thing. > The Linux kernel disables the possibility of hibernation when Secure Boot is in use because it cannot guarantee that the swap file is unc

It's a Linux thing. > The Linux kernel disables the possibility of hibernation when Secure Boot is in use because it cannot guarantee that the swap file is unchanged. "Unencrypted hibernation/suspend to swap are disallowed as the kernel image is saved to a medium that can then be accessed." https://wiki.debian.org/Hibernation https://wiki.debian.org/Hibernation