You were very clear in your first message that cups-browsed had been stopped. I can think of a reason for your observations (and why disabling avahi-daemon is a way of not seeing network discoverd printers) but it depends on what applications you are using. This is why I was interested in the answers to the questions, particularly
> In which print dialogs do the driverless extra printers > appear? Of which applications? I am going to assume (not my usual practice!) that the issue is seen with Firefox and Evince. Next time you observe these printers appearing. stop cups on the client. Are they still in the print dialog? (Stopping cups stops cups-browsed. Starting cups-browsed also starts cups). -- Brian. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1738432 Title: Regression, poor user experience, print dialogs garbled by unidentifiable driverless printers Status in cups package in Ubuntu: Incomplete Bug description: Recently, my print dialogs have started to include network discoverd printers in addition to those configured in cups even if the cups- browsed service is disabled and the BrowseRemoteProtocols option is set to none. There does not seem to be any way to disable this behavior apart from disabling avahi or its ability to talk to dbus, which causes side effects on the system. Yet, in some environments this behavior is a definite regression over the old one and leads to an extremely poor user experience. On some networks: - The print dialogs takes 3-10 sec to open which is a huge amount of time for an action that is expected to be instantaneous and for which there is no visual feedback. - The print dialog contains many tens of printer entries, all identified by weird hex strings that cannot be related to any useful location, that do not help identifying which entry corresponds to which printer and that only mess up the list making it hard to find the printers that are actually useful. For instance, suppose that you work at some office that has recently purchased a batch of new printers all the same model. In the print dialog you may get many entries like: HP_Laserjet_Pro_Mxxxdw_21ACF2 which only vary in the final hex string. How is one suppose to know what is where? Please make it possible to disable this driverless printer madness. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: libcups2 2.2.4-7ubuntu3 ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13 Uname: Linux 4.13.0-19-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.6 Architecture: amd64 CupsErrorLog: E [15/Dec/2017:12:41:45 +0100] [Client 6] Returning IPP client-error-bad-request for Create-Printer-Subscriptions (/) from localhost CurrentDesktop: KDE Date: Fri Dec 15 16:22:07 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2013-12-12 (1463 days ago) InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Notebook W740SU Papersize: a4 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-19-generic root=/dev/mapper/zagar_ssd--vg-root ro quiet splash resume=/dev/zagar_ssd-vg/swap_1 acpi_backlight=vendor vt.handoff=7 SourcePackage: cups UpgradeStatus: Upgraded to artful on 2017-10-26 (50 days ago) dmi.bios.date: 10/02/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: W740SU dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd10/02/2013:svnNotebook:pnW740SU:pvrNotApplicable:rvnNotebook:rnW740SU:rvrNotApplicable:cvnNotebook:ct9:cvrN/A: dmi.product.family: Not Applicable dmi.product.name: W740SU dmi.product.version: Not Applicable dmi.sys.vendor: Notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1738432/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
