I have tested now and your duplexsizes=... line is the better one, as it catches two extra page sizes (CardA4 and CardLetter) and it does not contain a blank line as the original does.
All in all, it does not fix the original problem, the "Missing choice" and "Multiple occurrences" failures are still there. -- 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
