We see the same problem here: we have a cups printer server say cups.localdomain.tld with a lot ipp- postscript-printers. The clients are configured to use the cups-server. Since 1.6 the client tries to get the ppd from the printer instead from the server.
A workaround is use a device-uri starting with http:// instead of ipp:// ipp://bla.localdomain.tld:631/ipp => http://bla.localdomain.tld:631/ipp We modified libcups in the same way as Lionel. I don't know why this has been changed from 1.5 to 1.6 but it seems buggy. Most ipp-printers don't provide a PPD. And even if the do there is no guarantie the client is allowed to communicate directly with the printer. Regards, -- Wolfgang Walter Studentenwerk München Anstalt des öffentlichen Rechts -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org