I have exactly the same problem. Disk method is 'shutdown'. Hibernate appears to work fine, but when the system is started, it just reboots, instead of resuming. There is no indication of any problem in the kernel logs. Suspend to RAM works.
Linux nova 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009 x86_64 GNU/Linux Distributor ID: Ubuntu Description: Ubuntu 9.04 Release: 9.04 Codename: jaunty -- Resuming after hibernating doesn't resume; just restarts. https://bugs.launchpad.net/bugs/359416 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
