Multitouch doesn't work on 2013 MacBook Air 6,2

[Linus G Thiel]

On the 2013 MacBook Air 6,2, the touchpad works very rudimentary. No multitouch, not even right click or two finger scroll works. This is fixed upstream though, see [1]. Getting that backported would be great.

[1]: https://github.com/torvalds/linux/commit/148c1c8ad3c4170186ebe6ea5900adde27d2a0e7

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-26-generic 3.8.0-26.38
ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
Uname: Linux 3.8.0-26-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: linus 1917 F.... pulseaudio
CRDA:
 country SE:
  (2402 - 2482 @ 40), (N/A, 20)
  (5170 - 5250 @ 40), (N/A, 20)
  (5250 - 5330 @ 40), (N/A, 20), DFS
  (5490 - 5710 @ 40), (N/A, 27), DFS
Date: Sat Jul 20 17:29:28 2013
HibernationDevice:
 RESUME=/dev/mapper/cryptswap1
 #RESUME=UUID=7625120b-1951-4a58-8da6-1c47db358631
MachineType: Apple Inc. MacBookAir6,2
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-26-generic root=UUID=2f08800d-d161-46e7-87b6-0f88e86890af ro i915.i915_enable_rc6=3 libata.force=1:noncq resume=/dev/sda4 quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-26-generic N/A
 linux-backports-modules-3.8.0-26-generic N/A
 linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
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.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Fixed by the following commit in mainline as of v3.11-rc1:

commit 148c1c8ad3c4170186ebe6ea5900adde27d2a0e7
Author: Dmitry Torokhov <email address hidden>
Date: Mon Jul 1 11:47:51 2013 -0700

    Input: bcm5974 - add support for the 2013 MacBook Air

This patch was also cc'd to upstream stable, so it will make it's way into Raring through the usual update process.

[Joseph Salisbury (jsalisbury)]

I'll build a test kernel with this patch to confirm it fixes this bug.

[Joseph Salisbury (jsalisbury)]

I built a raring test kernel with commit 148c1c8ad3c4170186ebe6ea5900adde27d2a0e7 applied. The test kernel can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1203320/

Can you test this kernel and confirm that it fixes this bug? Note, you will need to install both the linux-image and linux-image-extra .deb packages.

Thanks in advance!

[Julian Wiedmann (jwiedmann)]

Linus G Thiel,

could you please test the latest kernel in -updates (3.8.0-29.42) and see if this bug is fixed? Thanks.

[Linus G Thiel (yesbabyyes)]

Yes, I can confirm it's fixed in kernel 3.8.0-29.42.

Sorry for the delay.