The funny thing is that for me hibernation worked for quite a long
time without resume=.
Hibernation stopped working out of the box from F20. If you upgraded from F19 instead of a
new install (to F20/21), then you would not have noticed anything. This was my
experience.
In your case the question indeed is if hibernation is supported when
having 2 swap devices.
Did hibernation work with your setup (having 2 swap devices) at some
time in the past? If yes then we know it should be possible.
Could you try out hibernation when having one swap device only?
If this works we would know that in principal hibernation isn't broken.
Actually, I can't speak for this unusual situation, but in principle, hibernation
appears to have become buggy. I strongly suspect that with both Fedora and Ubuntu/Debian
taken it out by default, there is no more enough people trying it out, especially on newer
hardware. (That is where all my issues are.) If something does not work out of the box,
many will simply stop using the feature rather than go through the complicated steps (you
have to know about it in the first place) and then see if it works.
Which is why I think that adding these additional steps on to something that used to work
out of the box is a bad idea, especially because Fedora (in particular) tries to be a
testbed for a stabler system.
Many thanks and best wishes,
Ranjan
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