Ah ok, forcing log rotation _makes_ the printers disappear from mdns! The printers are still available on the server but are gone from all clients (including Linux).
The error_log shows a bad file descriptor error: I [03/Dec/2007:00:11:54 +0100] Saving job cache file "/var/cache/cups/job.cache"... D [03/Dec/2007:00:11:54 +0100] Discarding unused printer-state-changed event... E [03/Dec/2007:00:11:54 +0100] cupsdSendBrowseList: sendto failed for browser 1 - Bad file descriptor. I [03/Dec/2007:00:11:54 +0100] Loaded MIME database from '/usr/share/cups/mime:/etc/cups': 36 types, 40 filters... ** Attachment added: "cupsd.conf" http://launchpadlibrarian.net/10695285/cupsd.conf -- Gutsy: Bad interaction with avahi https://bugs.launchpad.net/bugs/173470 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs