The fault probably lies with the driver of the DVD drive. In the attachment there's a log made when waking from the first, successful suspension. Apparently at least one device doesn't wake up properly and it is connected by ATA, so it suggests the DVD. Indeed, after the suspension I can't read anything from any disk, even though I could have before. "cat /dev/cdrom/", instead of flooding the terminal, simply hangs up, not reacting even to ctrl-c.
My old friend ksoftirqd/1 also starts eating lots of the CPU power after the wake-up, which, reportedly, is somehow related to the interrupts and device drivers. Windows Vista running on the same machine doesn't have such problems, so I don't think it's a hardware issue. ** Attachment added: "successful wakeup log" https://bugs.launchpad.net/ubuntu/+source/udisks/+bug/810686/+attachment/2636105/+files/successful%20wakeup%20log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/810686 Title: udisks-daemon prevents system from suspending or hibernating To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/udisks/+bug/810686/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs