I have tested initramfs-tools 0.137ubuntu12.1 on groovy and it fixes the issue for me.
I performed the following test: 1. Setup swap on /dev/sda3 2. Add resume=/dev/sda3 to GRUB_CMDLINE_LINUX_DEFAULT 3. Run update-grub 4. Run pm-hibernate
The system resumes from hibernation.
I have tested initramfs-tools 0.137ubuntu12.1 on groovy and it fixes the issue for me.
I performed the following test: LINUX_DEFAULT
1. Setup swap on /dev/sda3
2. Add resume=/dev/sda3 to GRUB_CMDLINE_
3. Run update-grub
4. Run pm-hibernate
The system resumes from hibernation.