[Bug 1765935] Re: After 18.04 Installation TPM error screen (read a pcr value)

[Miles Sharpe]

Same error with a new 18.04 install on a Lenovo thinkpad.
Has this bug been fixed guys?

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Title:
  After 18.04 Installation TPM error screen (read a pcr value)

Status in debian-installer package in Ubuntu:
  Confirmed

Bug description:
  I installed a fresh (daily build, 20.04.2018) Ubuntu 18.04 on an Dell XPS 13.
  After the installation was complete, it didn't shut down successfully:

  [....] tpm tpm0: A TPM error (7) occurred attempting to read a pcr value
  [....] tpm tpm0: A TPM error (7) occurred attempting to read a pcr value
  [....] sd 8:0:0:0: [sda] No Caching mode page found
  [....] sd 8:0:0:0: [sda] Assuming drive cache: write through

  => After waiting a couple of minutes, I killed the system and restarted it manually.
  Everything seems to work thus far, the LVM decryption worked, too.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: debian-installer (not installed)
  ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
  Uname: Linux 4.15.0-15-generic x86_64
  ApportVersion: 2.20.9-0ubuntu6
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Apr 21 13:02:19 2018
  InstallationDate: Installed on 2018-04-21 (0 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180420)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0bda:5682 Realtek Semiconductor Corp. 
   Bus 001 Device 002: ID 0a5c:6412 Broadcom Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9350
  MemoryUsage:
   total        used        free      shared  buff/cache   available
   Mem:       16268064     1549300    12276884      830220     2441880    13784500
   Swap:       1003516           0     1003516
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-15-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
  SourcePackage: debian-installer
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/14/2017
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.6.1
  dmi.board.name: 0VM5NC
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.6.1:bd12/14/2017:svnDellInc.:pnXPS139350:pvr:rvnDellInc.:rn0VM5NC:rvrA01:cvnDellInc.:ct9:cvr:
  dmi.product.family: NULL
  dmi.product.name: XPS 13 9350
  dmi.sys.vendor: Dell Inc.

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