[arch-general] Hibernation not working

[Neven Sajko]

Regarding the difference between hibernation (suspension to disk)
and suspension to RAM:
Suspension to RAM just means turning off peripherals like disk and
display while keeping the RAM on. Thus from your perspective you
should just see the screen go black (and hear the disk spin down,
if you use a HDD).

Hibernation, on the other hand, is saving the system state to disk
and powering off the device, so you should be able to see some
messages while powering down, and again during boot up you could
see bootloader, initramfs, and kernel messages. There should be a
message about the Resume mkinitcpio hook being activated, although
it may be gone too quickly for you too see it.

Happy New Year 2017!