Here are ppd files and error logs for Ubuntu 19.04 (where it works) and Ubuntu 19.10 (where it doesn't work). Also, attrs.txt. As I didn't have any 19.04 installation, and had changed the printer configuration manually in 19.10, I run two live media, 19.04 and 19.10, and tested and generated the log files from there. In both cases, the printer (Brother MFC-L2720DW) was added automatically, and no manual configuration/driver installation involved.
** Attachment added: "attrs.txt" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1853879/+attachment/5309093/+files/attrs.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853879 Title: Dell E310dw: Default driver doesn't work, driverless fails on sides =two-sided-long-edge To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1853879/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs