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[WishMaster <1306621@xxxxxxxxxxxxxxxxxx>]

I can confirm the problem it also happens on my T440S. The system will
appear to go to sleep mode (i.e. the LEDs will start indicating sleep
mode). However, it appears to not suspend completely and the system
produces a lot of heat while it is in this state which is rather
dangerous if you put it in your sleeve and leave it there the system
will overheat quickly.

I have updated to the mainline 3.14 kernel and the problem persists.

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

** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream

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https://bugs.launchpad.net/bugs/1306621

Title:
  [LENOVO ThinkPad T440s] suspend/resume failure

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  1. Description:	Ubuntu Trusty Tahr (development branch)
  Release:	14.04
  2. linux-headers-3.13.0-23-generic:
    Installed: 3.13.0-23.45
    Candidate: 3.13.0-23.45
    Version table:
   *** 3.13.0-23.45 0
          500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
          100 /var/lib/dpkg/status
  3. Expected it to hibernate
  4. It didn't.

  ProblemType: KernelOops
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-23-generic 3.13.0-23.45
  ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
  Uname: Linux 3.13.0-23-generic x86_64
  Annotation: This occured during a previous suspend and prevented it from resuming properly.
  ApportVersion: 2.14.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  sol        2166 F.... pulseaudio
   /dev/snd/controlC0:  sol        2166 F.... pulseaudio
  Date: Fri Apr 11 09:53:08 2014
  ExecutablePath: /usr/share/apport/apportcheckresume
  Failure: suspend/resume
  HibernationDevice: RESUME=UUID=027c0786-cb7e-48db-84dd-75553c948299
  InstallationDate: Installed on 2014-02-15 (55 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140214)
  InterpreterPath: /usr/bin/python3.4
  MachineType: LENOVO 20AQCTO1WW
  ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-23-generic root=UUID=3275897d-69f9-492b-a5bc-82e88c59ad0b ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-23-generic N/A
   linux-backports-modules-3.13.0-23-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  Title: [LENOVO 20AQCTO1WW] suspend/resume failure
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 12/10/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GJET67WW (2.17 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20AQCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98405 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGJET67WW(2.17):bd12/10/2013:svnLENOVO:pn20AQCTO1WW:pvrThinkPadT440s:rvnLENOVO:rn20AQCTO1WW:rvr0B98405STD:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20AQCTO1WW
  dmi.product.version: ThinkPad T440s
  dmi.sys.vendor: LENOVO

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