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[Bug 1239074] Re: [MacBookAir5, 2] mini DP-to-VGA adapter not recognized

 

I manually installed linux-
image-3.12.0-031200rc4-generic_3.12.0-031200rc4.201310080738_amd64.deb
and this kernel perfectly handles the adapter. (On a side note, I can't
use this one as the wifi driver doesn't build/compile against this
kernel.)

Any other kernel I should test or work with in order to see what can be
done?

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https://bugs.launchpad.net/bugs/1239074

Title:
  [MacBookAir5,2] mini DP-to-VGA adapter not recognized

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  This is a regression from 12.10 where this adapter worked without any
  problems. The effect of this bug is that you can't use MacBookAir
  machines and use any display device with VGA. (Bad publicity to have
  to boot into Mac OS X to show a presentation about how good Ubuntu is,
  and why you'd want to switch ...)

  This bug is as similar to Bug #1222734 - the difference (as far as I
  can tell) is the MacBookAir version (5,1 - 5,2).

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-12-generic 3.11.0-12.19
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     2908 F.... pulseaudio
  CasperVersion: 1.336ubuntu1
  Date: Sat Oct 12 08:24:33 2013
  LiveMediaBuild: Ubuntu 13.10 "Saucy Salamander" - Beta amd64+mac (20131011.1)
  MachineType: Apple Inc. MacBookAir5,2
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  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
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/27/2012
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBA51.88Z.00EF.B02.1211271028
  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.B02.1211271028:bd11/27/2012: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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