[Macbook Air 5,1] applesmc module initialization fails

Bug #1034449 reported by Seth Forshee on 2012-08-08
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Seth Forshee

Bug Description

The applesmc module initialization fails due to timing issues when communicating with the SMC. The SMC provides access to various sensors as well as fan and keyboard backlight control, so none of these functions are available when driver initialization fails.

Patches to fix this are available in 3.6-rc1.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-8-generic 3.5.0-8.8
ProcVersionSignature: Ubuntu 3.5.0-8.8-generic 3.5.0
Uname: Linux 3.5.0-8-generic x86_64
ApportVersion: 2.4-0ubuntu6
Architecture: amd64
 /dev/snd/controlC0: sforshee 1865 F.... pulseaudio
Date: Wed Aug 8 10:44:12 2012
HibernationDevice: RESUME=UUID=372d2638-c99f-4051-93a9-74ab30c0b144
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac (20120730.1)
MachineType: Apple Inc. MacBookAir5,1
 PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-8-generic root=UUID=2a4ebbd2-91d3-4a76-95e2-15bad2db6803 ro intremap=off quiet splash vt.handoff=7
 linux-restricted-modules-3.5.0-8-generic N/A
 linux-backports-modules-3.5.0-8-generic N/A
 linux-firmware 1.88
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/22/2012
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBA51.88Z.00EF.B00.1205221442
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-66F35F19FE2A0D05
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookAir5,1
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-66F35F19FE2A0D05
dmi.modalias: dmi:bvnAppleInc.:bvrMBA51.88Z.00EF.B00.1205221442:bd05/22/2012:svnAppleInc.:pnMacBookAir5,1:pvr1.0:rvnAppleInc.:rnMac-66F35F19FE2A0D05:rvrMacBookAir5,1:cvnAppleInc.:ct10:cvrMac-66F35F19FE2A0D05:
dmi.product.name: MacBookAir5,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

Seth Forshee (sforshee) wrote :
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux - 3.5.0-10.10

linux (3.5.0-10.10) quantal-proposed; urgency=low

  [ Andy Whitcroft ]

  * rebase to v3.5.1

  [ Leann Ogasawara ]

  * [Config] Enable CONFIG_AFS_FSCACHE=y
    - LP: #728977

  [ Tim Gardner ]

  * SAUCE: firmware: Remove emi62 files duplicated in linux-firmware
  * SAUCE: firmware: Remove tehuti files duplicated in linux-firmware

  [ Upstream Kernel Changes ]

  * overlayfs: copy up i_uid/i_gid from the underlying inode
    - LP: #944386
  * hwmon: (applesmc) Shorten minimum wait time
    - LP: #1034449
  * hwmon: (applesmc) Decode and act on read/write status codes
    - LP: #1034449

  [ Upstream Kernel Changes ]

  * rebase to v3.5.1
    - LP: #1026953
    - LP: #1025377
 -- Leann Ogasawara <email address hidden> Sun, 12 Aug 2012 13:16:43 -0700

Changed in linux (Ubuntu):
status: In Progress → Fix Released

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

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