hibernate ubuntu 20 steps to enable hibernation

hibernateubuntu20.txt

Enabling Hibernate
[https://kaigo.medium.com/ubuntu-20-04-on-dell-xps-15-9570-14efd881f0d2]

    Install gparted from Ubuntu Software Centre
    Find the partition with the file system linux-swap
    Right click > Swapon (if not already on)
    Right click > Information
    Copy the UUID=14cee2ec-9d37–4ac0-b594-eae0e55814aa (for example)
    Add this UUID to /etc/default/grub file by running sudo gedit /etc/default/grub and editing the line

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=14cee2ec-9d37-4ac0-b594-eae0e55814aa"

7. Run sudo update-grub

8. Add the UUID again, to `/etc/initramfs-tools/conf.d/resume` file by running sudo gedit /etc/initramfs-tools/conf.d/resume

and pasting in the following:

RESUME=UUID=14cee2ec-9d37-4ac0-b594-eae0e55814aa

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

and paste in the following:

[Re-enable hibernate by default in upower]
Identity=unix-user:*
Action=org.freedesktop.upower.hibernate
ResultActive=yes

[Re-enable hibernate by default in logind]
Identity=unix-user:*
Action=org.freedesktop.login1.hibernate;org.freedesktop.login1.handle-hibernate-key;org.freedesktop.login1;org.freedesktop.login1.hibernate-multiple-sessions;org.freedesktop.login1.hibernate-ignore-inhibit
ResultActive=yes

10. Run `sudo gedit /etc/systemd/logind.conf`

and change the following line:

#HandleLidSwitch=poweroff

to

HandleLidSwitch=hibernate

And . . . . reboot