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[Shiva <1165965@xxxxxxxxxxxxxxxxxx>]

ApportVersion: 2.9.2-0ubuntu8.4
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  shivakumar   2508 F.... pulseaudio
CurrentDmesg:
 [   10.917802] Non-volatile memory driver v1.3
 [   21.743146] applesmc: light sensor data length set to 10
 [  202.273641] init: plymouth-stop pre-start process (3596) terminated with status 1
 [ 1605.682938] applesmc: send_byte(0x00, 0x0300) fail: 0x40
 [ 1605.682948] applesmc: LKSB: write data fail
DistroRelease: Ubuntu 13.04
InstallationDate: Installed on 2013-05-09 (116 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: Apple Inc. MacBookAir5,2
MarkForUpload: True
NonfreeKernelModules: wl
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-30-generic root=UUID=c10e7b33-9ec9-4084-91f2-cadc623597b5 ro quiet splash i915.i915_enable_rc6=1 vt.handoff=7
ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-30-generic N/A
 linux-backports-modules-3.8.0-30-generic  N/A
 linux-firmware                            1.106
Tags:  raring
Uname: Linux 3.8.0-30-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
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.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1165965

Title:
  External display stopped working on MacBook Air

Status in “linux” package in Ubuntu:
  Incomplete

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

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