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[Michael Frey <michael.frey@xxxxxxxxxxxxx>]

I have tested the above test kernel.  My sound is now working as
expected.

Tested audio playback, volume controls, mute, as well as headphone jack
detection.

All working perfectly now.

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https://bugs.launchpad.net/bugs/1233623

Title:
  Audio isn't working on MacBook Air 6,x (mix-2013)

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Audio support for the MBA 6,x needs two upstreamed kernel patches --
  [1] and [2]. These are already merged in Linus' tree and won't affect
  existing hardware support.

  [1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=be8cf44526d8972c2dbf6e561162dad924a712a5
  [2] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5bf0a929d7ca35b9ccfc24647a397899d307659

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-9-generic 3.11.0-9.16
  ProcVersionSignature: Ubuntu 3.11.0-9.16-generic 3.11.2
  Uname: Linux 3.11.0-9-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.12.5-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  kaloz      1777 F.... pulseaudio
   /dev/snd/controlC1:  kaloz      1777 F.... pulseaudio
  CurrentDmesg:
   [    9.170570] tg3 0000:0a:00.0 eth0: Flow control is off for TX and off for RX
   [    9.170574] tg3 0000:0a:00.0 eth0: EEE is disabled
   [    9.170589] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
   [   30.830046] show_signal_msg: 144 callbacks suppressed
   [   30.830054] lightum[1892]: segfault at 3 ip 00007fde1e1c95f1 sp 00007fff632f85b8 error 4 in libc-2.17.so[7fde1e060000+1bd000]
  Date: Tue Oct  1 13:45:40 2013
  HibernationDevice: RESUME=UUID=519b52b1-159e-4cc2-b085-4ce509efcd64
  InstallationDate: Installed on 2013-08-15 (47 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64+mac (20130424)
  MachineType: Apple Inc. MacBookAir6,2
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: \boot\vmlinuz-3.11.0-9-generic root=UUID=cf36c719-3103-4e72-9961-b80e8c44cb9d ro vt.handoff=7 libata.force=noncq quiet splash initrd=boot\initrd.img-3.11.0-9-generic
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-9-generic N/A
   linux-backports-modules-3.11.0-9-generic  N/A
   linux-firmware                            1.115
  SourcePackage: linux
  UpgradeStatus: Upgraded to saucy on 2013-08-26 (35 days ago)
  dmi.bios.date: 05/24/2013
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBA61.88Z.0099.B00.1305241529
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-7DF21CB3ED6977E5
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookAir6,2
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-7DF21CB3ED6977E5
  dmi.modalias: dmi:bvnAppleInc.:bvrMBA61.88Z.0099.B00.1305241529:bd05/24/2013:svnAppleInc.:pnMacBookAir6,2:pvr1.0:rvnAppleInc.:rnMac-7DF21CB3ED6977E5:rvrMacBookAir6,2:cvnAppleInc.:ct10:cvrMac-7DF21CB3ED6977E5:
  dmi.product.name: MacBookAir6,2
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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