I've located the problem. It stems from cups not sending back the full DeviceURI, but rather a sanitized version (read: with all the authentication stuff removed).
I've got a patch on my system that makes cups only remove the password. We need to evaluate whether or not this poses a security risk in any way to send the auth username back to the client. Optimally, returning the username would depend on whether or not the user would be allowed to change it, ie. has some sort of administrative rights. I'll see what I can whip up and whether we consider it safe for inclusion in the release. -- username for smb printer is not shown on printer properties https://launchpad.net/bugs/8125 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs