I have upgraded to Xenial and I can no longer reproduce the original bug. I can only assume it was something in gtk+ this has been fixed in Xenial. The fact that when it happened the jobs stuck in the queue unless deleted with the only evidence that anything was amiss being the lack of print output and a message in the error log that was only available if debug mode was switched on. Running the xenial printer- driver-hpcups source on my Wily system still showed showed the bug.
I am happy to run a local patched version on Xenial. So as far as I am concerned you can either let this bug time out or mark it as invalid. If anyone wants to raise an SRU it is up to them. That is a learning curve I do not want to experience. Thanks for your time. Roger -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1568996 Title: Duplex printing does not work properly for HP printers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/hplip/+bug/1568996/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs