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[Bug 1393281] Re: Print settings window reports "Print service is unavailable - Bad file descriptor" until cups is restarted

 

http://localhost:631/ gives a 404 error if the problem is present.

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https://bugs.launchpad.net/bugs/1393281

Title:
  Print settings window reports "Print service is unavailable - Bad file
  descriptor" until cups is restarted

Status in “cups” package in Ubuntu:
  Incomplete

Bug description:
  In the KDE Print Settings window, there are no settings (as expected) but a message reading "Print service is unavailable - Bad file descriptor": 
  http://wstaw.org/m/2014/11/17/plasma-desktopKB2526.png

  When I restart the cups service, all is well and I can see print
  settings.

  Kubuntu 14.10

  $ apt-cache policy cups
  cups:
    Installed: 1.7.5-3ubuntu2
    Candidate: 1.7.5-3ubuntu2
    Version table:
   *** 1.7.5-3ubuntu2 0
          500 http://mirror.cc.columbia.edu/pub/linux/ubuntu/archive/ utopic/main amd64 Packages
          100 /var/lib/dpkg/status
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CurrentDesktop: KDE
  DistroRelease: Ubuntu 14.10
  InstallationDate: Installed on 2014-04-18 (216 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  Lpstat: device for Dell-C1760nw: dnssd://Dell%20C1760nw%20Color%20Printer%20(B7%3A5F%3A1D)._pdl-datastream._tcp.local/
  MachineType: To be filled by O.E.M. To be filled by O.E.M.
  NonfreeKernelModules: fglrx
  Package: cups 1.7.5-3ubuntu2
  PackageArchitecture: amd64
  Papersize: letter
  PpdFiles: Dell-C1760nw: Xerox Phaser 6000B v1.0
  ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic root=UUID=b4a856d9-5d57-455a-b81d-6f21fc094155 ro quiet splash vt.handoff=7
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic root=UUID=b4a856d9-5d57-455a-b81d-6f21fc094155 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
  Tags:  utopic
  Uname: Linux 3.16.0-24-generic x86_64
  UpgradeStatus: Upgraded to utopic on 2014-10-26 (24 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
  _MarkForUpload: True
  dmi.bios.date: 12/10/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2201
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: M5A97 R2.0
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2201:bd12/10/2013:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97R2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To be filled by O.E.M.
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: To be filled by O.E.M.

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