Your /etc/crypttab shows that you have random crypted swap configured. It is impossible to resume from hibernate from a random-encrypted swap device because, by definition, the key is not stored anywhere that it can be used for resuming from a cold boot. This is one of many reasons why hibernate is disabled on Ubuntu by default. If Kubuntu is giving you the option to hibernate, that's a bug in the Kubuntu GUI.
If you want to be able to hibernate, you will need to reconfigure your encrypted swap to use a fixed key instead of a random one. This will require you to enter a passphrase at boot (and at resume from hibernate). Use of unencrypted swap with encrypted home directories is strongly discouraged as insecure. ** Package changed: cryptsetup (Ubuntu) => kubuntu-meta (Ubuntu) -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-meta in Ubuntu. https://bugs.launchpad.net/bugs/1012726 Title: Hibernating causes data loss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1012726/+subscriptions -- kubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
