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[Borim <1556623@xxxxxxxxxxxxxxxxxx>]

The bug also exists in linux kernel 4.5, tested with linux-
image-4.5.0-040500-generic_4.5.0-040500.201603140130_amd64

** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-4.5

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

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

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https://bugs.launchpad.net/bugs/1556623

Title:
  Sporadicly does not power off after will now halt message

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I use Ubuntu 14.04 since it was released. Everything worked fine, but for about half a year after shutting down my pc does not power off the machine. It just freeze and stay active. The last message I see is "Will now halt"
  This does not happen always, just from time to time. My impression is that this bug occur only if my PC runs for a longer time.

  Usually I shutdown my pc with the command:
  sudo shutdown -P now

  Are any additional information needed?

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-79-generic 3.13.0-79.123
  ProcVersionSignature: Ubuntu 3.13.0-79.123-generic 3.13.11-ckt33
  Uname: Linux 3.13.0-79-generic x86_64
  NonfreeKernelModules: wl tbs6982fe tbs6680fe tbs6923fe tbs6985se tbs6928se tbs6982se tbs6991fe tbs6618fe tbs6983fe tbs6922fe tbs6928fe tbs6991se tbs6290fe
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  mat        3124 F.... pulseaudio
   /dev/snd/controlC0:  mat        3124 F.... pulseaudio
   /dev/snd/pcmC0D8p:   mat        3124 F...m pulseaudio
  CurrentDesktop: Unity
  Date: Sun Mar 13 15:57:58 2016
  InstallationDate: Installed on 2014-03-30 (714 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140329)
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-79-generic root=UUID=afa0260e-e08d-416c-82a4-c9ae2e30d45b ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-79-generic N/A
   linux-backports-modules-3.13.0-79-generic  N/A
   linux-firmware                             1.127.20
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/11/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P2.50
  dmi.board.name: Z87E-ITX
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.50:bd07/11/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ87E-ITX:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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