[apparmor] [Bug 908864] Re: My Lexmark x2650 printer stopped working after upgrading to 11.10: Idle - File "/usr/local/lexmark/lxk08/bin/printdriver" has insecure permissions (0100775/uid=0/gid=2).

[John Johansen]

If logprof finds a denied message it understands it should prompt you
with a message giving you the chance to allow it.  Since this is not
happening, it is not finding a message it understands.

I took a look in your currentdmesg and bootdmesg attachments and didn't
see any apparmor messages, so I am inclined to believe this is not being
caused by apparmor.  There are a couple ways to test this

1. Remove the apparmor cups profile
    sudo apparmor_parser -R /etc/apparmor.d/usr.sbin.cupsd
  and then restart cups
   sudo restart cups

2. Remove all apparmor profiles
  sudo /etc/init.d/apparmor stop

and then restart cups
  sudo restart cups

3. If neither of those work, you can completely disable apparmor from boot by adding
  apparmor=0
on the grub command line for the kernel you boot.

Any one of these should establish whether apparmor is the cause, #1
leaves some apparmor protection in place #2, and #3 should completely
disable apparmor but #3 makes sure it has never run from boot so that
there can not be any residual effects.

If cups is still failing after these we will need to start hunting down
none apparmor sources of the problem.  If it starts working we will need
to start looking into why apparmor is not logging why it denying access
to something.

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https://bugs.launchpad.net/bugs/908864

Title:
  My Lexmark x2650 printer stopped working after upgrading to 11.10:
  Idle - File "/usr/local/lexmark/lxk08/bin/printdriver" has insecure
  permissions (0100775/uid=0/gid=2).

Status in AppArmor Linux application security framework:
  New
Status in “cups” package in Ubuntu:
  New

Bug description:
  I used Ubuntu 9.04 for a long time and the driver available on the
  manufacturer's site:
  http://support.lexmark.com/index?page=content&id=DR860&actp=search&viewlocale=en_US&segment=SUPPORT&productCode=LEXMARK_X2650&locale=EN&userlocale=EN_US&searchid=1324929199490
  worked perfectly! after installing the newest Ubuntu, I can't even
  finish the installation process of the driver, the Setup says "no
  connection", even though there is connection to the printer, because
  it appears in the list of printers when introduced to the USB.

  from what I have learnt on the web, recent changes in Cups and
  AppArmor caused that the connection to a printer with 3rd party driver
  is often blocked. but this is too high a game for me to solve here...

  have tried in another machine too, the same result, which means that
  THIS PRINTER JUST STOPPED WORKING IN LINUX at all. That is sad. I have
  to go back to older Ubuntu's just for the printer!!!!!!!!!

  This is insane.

  See my debugging results.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: cups 1.5.0-8ubuntu5
  ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
  Uname: Linux 3.0.0-13-generic i686
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  Date: Mon Dec 26 20:43:21 2011
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110921.2)
  Lpstat: device for 2600-Series: usb://Lexmark/2600%20Series?serial=3001960G9644833&interface=1
  MachineType: ASUSTeK Computer INC. 1000H
  Papersize: letter
  PpdFiles: 2600-Series: Lexmark 2600 Series, 1.0
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic root=UUID=2e7845e1-2b31-4fe5-95bc-334f43798f52 ro quiet splash vt.handoff=7
  SourcePackage: cups
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/01/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1005
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: 1000H
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: x.xx
  dmi.chassis.asset.tag: 0x00000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTek Computer INC.
  dmi.chassis.version: x.x
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1005:bd08/01/2008:svnASUSTeKComputerINC.:pn1000H:pvrx.x:rvnASUSTeKComputerINC.:rn1000H:rvrx.xx:cvnASUSTekComputerINC.:ct10:cvrx.x:
  dmi.product.name: 1000H
  dmi.product.version: x.x
  dmi.sys.vendor: ASUSTeK Computer INC.

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