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[Bug 1479143] Re: Print UI hangs on launch and will not close

 

Not sure if this is the cause but I noticed the report states.

exit code 2: grep: /etc/cups/ppd/PDF.ppd: Permission denied

  File: ‘/etc/cups/ppd/PDF.ppd’
  Size: 20956     	Blocks: 48         IO Block: 4096   regular file
Device: 801h/2049d	Inode: 800693      Links: 1
Access: (0640/-rw-r-----)  Uid: (    0/    root)   Gid: (    7/      lp)
Access: 2015-07-03 23:02:26.802926705 -0400
Modify: 2015-07-03 23:02:26.802926705 -0400
Change: 2015-07-03 23:02:26.842926706 -0400
 Birth: 

So that is 0640  but the documentation on http://www.cups-pdf.de says it
should be 0700.

<a href="http://www.cups-pdf.de/documentation.shtml";>CUPS-PDF requires
root privileges since it has to modify file ownerships. In order to
ensure CUPS-PDF is running with the required root privileges you have to
make 'root' the owner of the cups-pdf backend and set the file
permissions of the backend to 0700 (root only)</a>

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https://bugs.launchpad.net/bugs/1479143

Title:
  Print UI hangs on launch and will not close

Status in system-config-printer package in Ubuntu:
  New

Bug description:
  If I launch the print UI from the system control panel it takes
  forever to open (if it opens) and when it opens it will not close and
  then will crash.

  
  If I try to print from an application the print everything locks up and eventually goes back to normal but no print UI is shown.

  ProblemType: RecoverableProblem
  DistroRelease: Ubuntu 15.04
  Package: system-config-printer-gnome 1.5.6+20150318-0ubuntu2.1
  ProcVersionSignature: Ubuntu 3.19.0-25.26-generic 3.19.8-ckt2
  Uname: Linux 3.19.0-25-generic x86_64
  NonfreeKernelModules: nvidia
  ActionNames:
   
  ActionPaths: /com/canonical/unity/gtk/window/0;
  Added: 0
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  BusName: :1.76
  CurrentDesktop: Unity
  Date: Tue Jul 28 18:57:16 2015
  DuplicateSignature: /usr/share/system-config-printer/system-config-printer.py:GMenuModelItemsChangedInvalidIndex
  ExecutablePath: /usr/share/system-config-printer/system-config-printer.py
  InstallationDate: Installed on 2015-07-03 (24 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  InterpreterPath: /usr/bin/python3.4
  ItemCount: 0
  LinkType: root
  Lpstat: device for PDF: cups-pdf:/
  MachineType: System manufacturer System Product Name
  MenuLabel:
   
  MenuName:
   
  MenuPath: /com/canonical/unity/gtk/window/0
  PackageArchitecture: all
  Papersize: letter
  Position: 0
  PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/PDF.ppd'] failed with exit code 2: grep: /etc/cups/ppd/PDF.ppd: Permission denied
  ProcCmdline: /usr/bin/python3 /usr/share/system-config-printer/system-config-printer.py
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-25-generic root=UUID=7c125488-bd8f-4f66-a744-c95dfe7dc5db ro quiet splash enable_mtrr_cleanup acpi_osi=Linux nmi_watchdog=0 cgroup_disable=memory intel_pstate=enable
  Removed: 1
  SourcePackage: system-config-printer
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio bluetooth cdrom dialout dip floppy lpadmin netdev plugdev sambashare scanner sudo video
  dmi.bios.date: 11/09/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3603
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8Z68-V PRO
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3603:bd11/09/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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References