How to set up hibernate on mate 18.04

[stephenbbb]

after a fresh Mate install, I edited grub and updated grub and initramfs.

    cat /proc/swaps

Filename Type Size Used Priority
/swapfile file 2097148 0 -2

cat /etc/default/grub | grep resume

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=/swapfile"

it does not recover the previous workspace after hibernation, but it is not a clean restart as the network does not work. checking for a sleep process does not find any.
any ideas?

[pavlos_kairis]

Take a look at this ...

Hibernate / Resume from hibernation - Ubuntu (MATE) 18.04

Hibernate / Resume from hibernation - Ubuntu (MATE) 18.04 Hibernate / Resume from Hibernation did work as expected in Ubuntu MATE 16.10, 17.04, 17.10 (at least on my PCs, not on my notebooks). Issue: Hibernate / Resume from Hibernation do not work as expected after new installation / upgrading to Ubuntu (MATE) 18.04. This short guide assumes you have a swap partition on your Ubuntu (MATE) 18.04 PC. Open MATE Terminal sudo blkid | grep swap Copy the UUID (it looks like this XXX-XXX-XXX-XXX-…

[stephenbbb]

I had already done that and it still does not work. is it possible hibernate needs to resume from a non-root partition? I have another mate where swap is on its own partition and it works fine. this new install has a single partition and uses a swapfile as I show. Is that a problem??

[pavlos_kairis]

Have you tried passing UUID as the parameter (instead of /swapfile) ...
GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash resume=UUID=xxxxxxx”
don't forget to update-grub after mod.

[stephenbbb]

There is no uuid. the swaapfile is A FILE, not a partition.
I posted the output of cat /proc/swaps which clearly shows that.

[pavlos_kairis]

my mistake, sorry...

[stephenbbb]

I discovered it is not possible to use a swapfile to hibernate. There is a workaround by using uswsusp and the solution is here:

Hibernate and resume from a swap file

I will just create a swap partition and hibernate the usual way.