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[M Ali <1165965@xxxxxxxxxxxxxxxxxx>]

Thanks all I've checked 
mali@jupiter:~$ uname -a
Linux jupiter 3.11.5-031105-generic #201310132235 SMP Mon Oct 14 02:35:52 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

It works fine, no problems with VGA to DVI, as a bonus wifi and trackpad
work without issue.

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https://bugs.launchpad.net/bugs/1165965

Title:
  External display stopped working

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  After upgrading to 13.04 beta, my external monitor is no longer
  detected/driven. This works perfectly under 12.10, and is therefore a
  major regression impacting common use cases.

  When the Display Port/VGA adapter is plugged in dmesg reports 15 instances of:
      [drm:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up

  Hardware: MacBook Air 2012
  Display configuration: Apple Display Port to VGA adaptor
  Ubuntu version: 13.04 beta.
  --- 
  ApportVersion: 2.9.2-0ubuntu5
  Architecture: amd64
  DistroRelease: Ubuntu 13.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2012-07-24 (258 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MarkForUpload: True
  Package: linux (not installed)
  Tags:  raring
  Uname: Linux 3.9.0-030900rc6-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to raring on 2013-04-07 (2 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  --- 
  ApportVersion: 2.12.5-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mwp        3892 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2012-07-24 (453 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Apple Inc. MacBookAir5,2
  MarkForUpload: True
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-12-generic root=UUID=6556813f-c877-4988-bde5-24ac4ec74444 ro nointremap quiet splash i915.i915_enable_rc6=1 vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-12-generic N/A
   linux-backports-modules-3.11.0-12-generic  N/A
   linux-firmware                             1.116
  Tags:  saucy
  Uname: Linux 3.11.0-12-generic x86_64
  UpgradeStatus: Upgraded to saucy on 2013-10-21 (0 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 05/22/2012
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBA51.88Z.00EF.B00.1205221442
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-2E6FAB96566FE58C
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookAir5,2
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-2E6FAB96566FE58C
  dmi.modalias: dmi:bvnAppleInc.:bvrMBA51.88Z.00EF.B00.1205221442:bd05/22/2012:svnAppleInc.:pnMacBookAir5,2:pvr1.0:rvnAppleInc.:rnMac-2E6FAB96566FE58C:rvrMacBookAir5,2:cvnAppleInc.:ct10:cvrMac-2E6FAB96566FE58C:
  dmi.product.name: MacBookAir5,2
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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