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[Bug 964480] Re: MacBook Air 4, 1 gets very hot before fan starts

 

Skyler Leigh, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, please just make a comment to this.

If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc5

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Tags added: needs-upstream-testing

** Tags added: kernel-therm

** Changed in: linux (Ubuntu)
       Status: Triaged => Incomplete

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https://bugs.launchpad.net/bugs/964480

Title:
  MacBook Air 4,1 gets very hot before fan starts

Status in The Linux Kernel:
  Confirmed
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  My MacBook Air gets quite hot to the touch during minor usage (i.e.
  machine sitting untouched with browser and terminals open). The fan
  should really be starting up before the machine becomes uncomfortable
  to touch, but for some reason the fan is not triggered. What
  additional details can I provide to better describe the issue?

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-generic 3.2.0.20.22
  ProcVersionSignature: Ubuntu 3.2.0-20.32-generic 3.2.12
  Uname: Linux 3.2.0-20-generic x86_64
  NonfreeKernelModules: wl
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.95-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  skyler     3238 F.... pulseaudio
  Date: Sun Mar 25 03:46:11 2012
  EcryptfsInUse: Yes
  MachineType: Apple Inc. MacBookAir4,1
  ProcEnviron:
   TERM=xterm
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-20-generic root=UUID=3727a9a5-dffe-4a76-8b94-739e3385d194 ro quiet splash vt.handoff=7
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/24/2012
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBA41.88Z.0077.B0F.1201241549
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-C08A6BB70A942AC2
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookAir4,1
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-C08A6BB70A942AC2
  dmi.modalias: dmi:bvnAppleInc.:bvrMBA41.88Z.0077.B0F.1201241549:bd01/24/2012:svnAppleInc.:pnMacBookAir4,1:pvr1.0:rvnAppleInc.:rnMac-C08A6BB70A942AC2:rvrMacBookAir4,1:cvnAppleInc.:ct10:cvrMac-C08A6BB70A942AC2:
  dmi.product.name: MacBookAir4,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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