I was involved in these discussion for Ubuntu ... back in 2011. You can see some discussion here: https://bugs.launchpad.net/ubuntu/+source/policykit-desktop-p

I was involved in these discussion for Ubuntu ... back in 2011. You can see some discussion here: https://bugs.launchpad.net/ubuntu/+source/policykit-desktop-privileges/+bug/710796 https://bugs.launchpad.net/ubuntu/+source/policykit-desktop-... and even more here: https://bugs.launchpad.net/ubuntu/+source/policykit-desktop-privileges/+bug/812394 https://bugs.launchpad.net/ubuntu/+source/policykit-desktop-... net/net even back then, no matter how much effort we put into it, we could never make it work on even most machines because there was just too much variability. The OEM team could make it work for specific machines that Ubuntu was pre-installed on, but otherwise, hibernate was just a bug farm.