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[jkbkot <1427860@xxxxxxxxxxxxxxxxxx>]

I've tested the latest v4.0 kernel and the problem persists.

$ dmesg | grep -i tpm
[    0.645842] tpm_tis 00:05: 1.2 TPM (device-id 0x0, rev-id 78)
[    0.705863] tpm_tis 00:05: TPM is disabled/deactivated (0x6)
[    0.765865] tpm_tis 00:05: A TPM error (6) occurred attempting to read a pcr value
[    0.766495] ima: No TPM chip found, activating TPM-bypass!

$ uname -a
Linux x-ThinkPad-T420 4.0.0-040000rc7-generic #201504061936 SMP Mon Apr 6 23:37:35 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux


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

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

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https://bugs.launchpad.net/bugs/1427860

Title:
  tpm error

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I see this in the dmesg

  [    0.649779] tpm_tis 00:05: 1.2 TPM (device-id 0x0, rev-id 78)
  [    0.695984] tpm_tis 00:05: TPM is disabled/deactivated (0x6)
  [    0.751948] tpm_tis 00:05: A TPM error (6) occurred attempting to read a pcr value

  What should I do?

  Having the X1 Carbon Thinkpad Laptop here on Ubuntu 14.10 ...

  Thanks for any clues
  --- 
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  michael-heuberger   1875 F.... pulseaudio
   /dev/snd/controlC0:  michael-heuberger   1875 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.10
  HibernationDevice: RESUME=UUID=f56bc63e-85f1-4413-8e7c-74e80d2ff05a
  InstallationDate: Installed on 2015-02-09 (22 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: LENOVO 20A7006KAU
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic.efi.signed root=UUID=5b057058-65da-4081-a675-5818d20e9ec5 ro quiet
  ProcVersionSignature: Ubuntu 3.16.0-31.41-generic 3.16.7-ckt5
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-31-generic N/A
   linux-backports-modules-3.16.0-31-generic  N/A
   linux-firmware                             1.138.1
  Tags:  utopic
  Uname: Linux 3.16.0-31-generic x86_64
  UpgradeStatus: Upgraded to utopic on 2015-02-09 (22 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/02/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GRET40WW (1.17 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20A7006KAU
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGRET40WW(1.17):bd09/02/2014:svnLENOVO:pn20A7006KAU:pvrThinkPadX1Carbon2nd:rvnLENOVO:rn20A7006KAU:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20A7006KAU
  dmi.product.version: ThinkPad X1 Carbon 2nd
  dmi.sys.vendor: LENOVO

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