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

[Imre Kaloz]

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.

[Imre Kaloz (kaloz)]

https://bugzilla.kernel.org/show_bug.cgi?id=60811

[Brad Figg (brad-figg)]

This change was made by a bot.

[Andy Whitcroft (apw)]

Ok I have applied these two patches against the lastest Saucy tip. Could you confirm that these kernels fix the isssue for you and report back here:

    http://people.canonical.com/~apw/lp1233623-saucy/

Thanks.

[Michael Frey (mfrey)]

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.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.11.0-11.17

---------------
linux (3.11.0-11.17) saucy; urgency=low

  [ Andy Whitcroft ]

  * [Packaging] tools -- only build common tools package in master
  * SAUCE: tools -- report when tool is not available
    - LP: #1233376
  * [Packaging] tools -- common tools must carry all possible tools
    - LP: #1233376

  [ Colin Ian King ]

  * [Config] Fix power and performance regression
    - LP: #1233681

  [ Colin Watson ]

  * [Config] Clean up various udeb Provides

  [ Tim Gardner ]

  * rebase to v3.11.3
  * Release tracker
    - LP: #1233808

  [ Upstream Kernel Changes ]

  * ALSA: hda - Add CS4208 codec support for MacBook 6,1 and 6,2
    - LP: #1233623
  * ALSA: hda - Add fixup for MacBook Air 6,1 and 6,2 with CS4208 codec
    - LP: #1233623
  * NVMe: Remove "process_cq did something" message
    - LP: #1233686
  * Drivers: hv: balloon: Initialize the transaction ID just before sending the packet
    - LP: #1233466
  * cciss: fix info leak in cciss_ioctl32_passthru()
    - LP: #1188355
    - CVE-2013-2147
  * cpqarray: fix info leak in ida_locked_ioctl()
    - LP: #1188355
    - CVE-2013-2147
  * Drivers: hv: util: Fix a bug in version negotiation code for util services
    - LP: #1233433
 -- Tim Gardner <email address hidden> Tue, 01 Oct 2013 07:24:27 -0600