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[Bug 1574428] Re: Macbook Pro 9, 2 battery readings screwed up


Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:

Once testing of the upstream kernel is complete, please mark this bug as

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc6-wily/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

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  Macbook Pro 9, 2 battery readings screwed up

Status in linux package in Ubuntu:

Bug description:
  In a fresh Ubuntu 16.04 install, my Macbook does not properly report
  any of the following in the top bar:

  1. Charge. It cannot charge over ~90-92%.
  2. Charging or not: when the power adapter is plugged in, it claims its not plugged in, and the LED is green on the charger; while if its not plugged in, it shows the "spark" symbol - thinking it is plugged in.

  After a while of being plugged it registers as plugged in, fully
  charged, even though its only charged ~88%

  I don't know where to start to troubleshoot this.
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
   /dev/snd/controlC0:  willem     3714 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=66fe1cc0-f190-4722-84d6-59d4ed7bf72c
  InstallationDate: Installed on 2016-04-25 (0 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  MachineType: Apple Inc. MacBookPro9,2
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=bcd24473-cd73-4ce0-a4bd-3ac948dfe12e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  Tags:  xenial
  Uname: Linux 4.4.0-21-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 08/08/2012
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP91.88Z.00D3.B08.1208081132
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-6F01561E16C75D06
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro9,2
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-6F01561E16C75D06
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP91.88Z.00D3.B08.1208081132:bd08/08/2012:svnAppleInc.:pnMacBookPro9,2:pvr1.0:rvnAppleInc.:rnMac-6F01561E16C75D06:rvrMacBookPro9,2:cvnAppleInc.:ct10:cvrMac-6F01561E16C75D06:
  dmi.product.name: MacBookPro9,2
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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