Additional information: On both Debian 10 and Debian unstable, I get
$ ipptool -tv ipp://localhost/printers/print-1 get-printer-attributes.test | grep sides- sides-supported (1setOf keyword) = one-sided,two-sided-long-edge,two-sided-short-edge sides-default (keyword) = one-sided I suspect that for some reason, the old client did not take into account sides-default, but the fork does. I don't know whether this is intended, but I couldn't find any information about such a change. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)