Before I get into bisection, I did another experiment. I also have a macbookpro running Ubuntu 15.04 same kernel. I plugged the printer into the macbook and it is properly recognized. I'm attaching the relevant portions of the syslog from the workstation and the macbook. They are quite a bit different.
The workstation, is the original machine that lost the printer after the upgrade. The macbook is running the same OS/kernel but sees the printer. ** Attachment added: "syslog on machine that worked" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1455937/+attachment/4401190/+files/macbook-log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1455937 Title: HP 1018 not seen after upgrade to Ubuntu 15.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1455937/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs