The following may be useful, I also have this problem, at first a while ago when I was dual booting ubuntu and win 7 using MBR boot, the same behaviour occurred, I resolved by setting the boot flag (linux def) on the win 7 partition and hibernation worked correctly.
I decided to go GPT/UEFI so that I could squeeze some more partitions onto HDD and encountered the bug again described here, I thought I will try setting the boot flag again (I know you're not meant too but nothing to loose!) and this just resulted in windows hanging on the loading windows when trying to boot without resuming. Although unlikely it may point to a problem with windows bootloader where for some reason it may be looking for that flag and in mbr its fine to have it and it carries on, but with GPT it find it and carries on but hangs because the flag is out of place in GPT. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1229886 Title: Grub2 cannot bring Win 7 out of hibernation - error 0xc000009a To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1229886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
