Comment 53 for bug 1774950

@kaihengfeng - tested Hibernate function (with kernel 4.15 with patch applied) on Ubuntu 18.04 with a swap file and Kubuntu 18.04 with a swap partition on the same machine.

Both experienced same issue in the same way - hibernation starts, system freezes with screen off and powerLED on (instead of shutting down by itself), after forced shutdown hibernation resumes as if it all went fine.

Using the swap file or swap partition did not seem to affect the behaviour.

Both completed hibernation cycle without issue using kernel 4.14.