Funguje, netreba nic doinstalovat, akurat musis zmenit par konfigurakov:
do /etc/mkinitcpio.conf treba pridat resume:
HOOKS="base udev autodetect ide scsi sata lvm2 resume filesystems "
resume musi byt po ide, scsi, sata, lvm2, ale pred filesystems.
a nasledne:
#mkinitcpio -p linux
potom treba zmenit /etc/default/grub:
GRUB_CMDLINE_LINUX="resume=/dev/sdXY"
/dev/sdXY je swap particia
a nasledne:
#grub-mkconfig -o /boot/grub/grub.cfg