Hello I am using Kubuntu and I want to be able to use "Power management" options for hibernation but they are not available.
I followed the highest rated post by Anthony O. from: Hibernate and resume from a swap file
I am now able to use(but no button inside KDE shows hibernation):
$ sudo systemctl hibernate
Below I have general information as it might help
$ swapon
NAME TYPE SIZE USED PRIO
/swapfile file 16G 0B -2
$ sudo findmnt -no SOURCE,UUID -T /swapfile
[sudo] password for daniel:
/dev/nvme0n1p5 efcdc047-679c-427f-a607-daf3ebaceb05
$ sudo swap-offset /swapfile
resume offset = 34816
GNU nano 4.8 /etc/systemd/system/systemd-hibernate.service.d/.#override.conf6f9ccc51812d3882
[Service]
ExecStart=
ExecStart=/usr/sbin/s2disk
ExecStartPost=/bin/run-parts -a post /lib/systemd/system-sleep
GNU nano 4.8 /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="resume=UUID=efcdc047-679c-427f-a607-daf3ebaceb05 resume_offset=34816 quiet splash"
GRUB_CMDLINE_LINUX=""
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
GNU nano 4.8 /etc/initramfs-tools/conf.d/resume Modified
RESUME=UUID=efcdc047-679c-427f-a607-daf3ebaceb05 resume_offset=34816
# Resume from /swapfile
