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

Bug #1233623 reported by Imre Kaloz on 2013-10-01
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Tim Gardner
Tim Gardner

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.


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
 /dev/snd/controlC0: kaloz 1777 F.... pulseaudio
 /dev/snd/controlC1: kaloz 1777 F.... pulseaudio
 [ 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[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
 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) 05/24/2013
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBA61.88Z.0099.B00.1305241529
dmi.board.asset.tag: Base Board Asset Tag# 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: MacBookAir6,2
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

CVE References

Imre Kaloz (kaloz) wrote :

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Andy Whitcroft (apw) wrote :

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:


Michael Frey (mfrey) wrote :

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.

Changed in linux (Ubuntu):
importance: Undecided → Medium
Tim Gardner (timg-tpi) on 2013-10-01
Changed in linux (Ubuntu Saucy):
assignee: nobody → Tim Gardner (timg-tpi)
status: Confirmed → In Progress
status: In Progress → Fix Committed
Launchpad Janitor (janitor) wrote :

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

Changed in linux (Ubuntu Saucy):
status: Fix Committed → Fix Released
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