Hibernate, 16.04 PPC

pls. make “Hibernate” work (16.04 PPC).
It is a key feature!
I was surprised to read in the official Ubuntu documentation …
https://help.ubuntu.com/stable/ubuntu-help/power-hibernate.html
… that Hibernate would not work “in many cases”. I never had such case both with
i) the PowerPC running with OX X 10.5.8
ii) elementary OS (an 12.04 and 14.04 based distro) on a x86-desktop and a HP5103-netbook.