I had this same problem. You can solve it by opening synaptic packet manager and manually upgrading docky from there, you'll be asked to confirm the removal of python-docky which may be why the update manager greyed out the option.
Can somebody tell me if this is the correct behaviour? Is python-docky deprecated now? -- Docky update is shown in Update-Manager but greyed-out https://bugs.launchpad.net/bugs/587682 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