Er, it is a script I had written and put myself, but had forgotten about. In my case I discovered the problem by opening the power manager logs in /var/log/pm-suspend.log and looking through it to find errors. I found that a script I had placed in /etc/pm/sleep.d was inhibiting suspend. This problem therefore had nothing to do with my kernel.
-- Suspend/Hibernate failure after update to kernel 2.6.31.16 https://bugs.launchpad.net/bugs/493892 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