I think this is not a bug of Ubuntu or any OS. This is bug of HP BIOS, they should disable and delete ACPI S3 Hard Disk Reset in OS Power Management because if is enabled, it causing problem of wake from sleep/suspend. I disable this option and sleep/suspend works good in all my OSes. http://ipic.su/arBCs.jpg
** Changed in: linux (Ubuntu) Status: Triaged => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1375995 Title: [HP Compaq dc7800 Small Form Factor PC] suspend/resume failure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1375995/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs