I have a hard drive with the below partition layout. I can suspend-to-ram and resume as well as pass all the pm_test (without actually writing the image to disk). However, when I do the actual suspend-to-disk, upon resume, I got a short message saying PM is resume from dm-2 device, and just black screen.
Since my hard disk is encrypted, I figure perhaps my swap partition was corrupted on boot. Anyone has any suggestion?
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 223.6G 0 disk ├─sda1 8:1 0 200M 0 part /boot/efi ├─sda2 8:2 0 3G 0 part /boot └─sda3 8:3 0 220.4G 0 part └─luks-6517ca17-aaad-423e-99f0-df9b0e4c9bc7 253:0 0 220.4G 0 crypt ├─fedora-root 253:1 0 53.4G 0 lvm / ├─fedora-swap 253:2 0 17G 0 lvm [SWAP] └─fedora-home 253:3 0 150G 0 lvm /home
luks-6517ca17-aaad-423e-99f0-df9b0e4c9bc7 UUID=6517ca17-aaad-423e-99f0-df9b0e4c9bc7 none
GRUB_CMDLINE_LINUX="rd.lvm.lv=fedora/root rd.luks.uuid=luks-6517ca17-aaad-423e-99f0-df9b0e4c9bc7 rd.lvm.lv=fedora/swap rhgb quiet resume=/dev/dm-2 hugepagesz=1G hugepages=2"
OS: Fedora Core 23 64-bit, 4.3.5-300.fc23.x86_64
P.S. I have tried to suspend to a non-encrypted swap partition (in a different hard drive, and non-lvm), so I know it's to do with my partition setup...