qemu resume from s3 is busted. There's a patch upstream that fixes it: https://lists.nongnu.org/archive/html/qemu-devel/2013-12/msg01955.html But it's not upstreamable as is, and it's an open question what the real solution is. CCing some folks from the upstream discussion
I assume this was fixed upstream at some point, though that specific patch didn't go in. But F20 is nearing EOL so just closing