kernel-packages team mailing list archive

[Dave Chiluk <1588944@xxxxxxxxxxxxxxxxxx>]

** Summary changed:

- Incorrect low-battery detected forcing suspend
+ Incorrect 0% remaining battery detected forcing suspend

** Changed in: indicator-power (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1588944

Title:
  Incorrect 0% remaining battery detected forcing suspend

Status in indicator-power package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu is detecting that my battery has depleted to low or 0% which
  results in the OS forcing suspend.  Normally this would be correct
  behavior, but in my case the battery has closer to 90% of remaining
  battery left.

  I have experienced this with 4.4.0-22 and 4.4.0-23, and am currently
  running 4.4.0-21 to see if it reproduces there as well.

  I do have -proposed enabled so it's a bit hard to determine if this is
  the kernel or something higher up the stack.

  This does seem to be mildly reproducible. 4.4.0-23 being the most
  problematic kernel so far.

  Of course this is a relatively new laptop so this could be a hardware
  issue as well.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-21-generic 4.4.0-21.37
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  chiluk     2462 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri Jun  3 14:07:17 2016
  HibernationDevice: RESUME=UUID=4f4ea88e-642e-4be5-bdf0-bbc7f47f5628
  InstallationDate: Installed on 2016-04-25 (38 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 04f2:b531 Chicony Electronics Co., Ltd 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 20FBCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=249f91bb-7789-41cc-9cc0-8ba25d7f55bb ro quiet splash pcie_aspm=force vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/18/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N1FET40W (1.14 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20FBCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40709 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN1FET40W(1.14):bd04/18/2016:svnLENOVO:pn20FBCTO1WW:pvrThinkPadX1Carbon4th:rvnLENOVO:rn20FBCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20FBCTO1WW
  dmi.product.version: ThinkPad X1 Carbon 4th
  dmi.sys.vendor: LENOVO

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