Public bug reported: I recently started getting the same error in Arch Linux and am not sure what happened. This is on a work computer, separate drive, so I can't disable TPM via the BIOS like various reports suggest. The error from dmesg that flashes right after I initiate the boot:
$ dmesg |grep -i tpm [ 4.907466] tpm_tis 00:07: 1.2 TPM (device-id 0x1A, rev-id 16) [ 5.219488] tpm_tis 00:07: TPM is disabled/deactivated (0x7) [ 5.331494] tpm_tis 00:07: A TPM error (7) occurred attempting to read a pcr value [ 5.331538] ima: No TPM chip found, activating TPM-bypass! The same bug appears to have been reported more than a year ago: - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427860 It's frustrating to see users were to submit their own separate reports, at least one appears to have done so, and then the bug expires due to 60 days of no activity. It looks to still be an issue. I started experiencing the same thing on Arch recently but they don't build tpm_tis into the kernel so I can blacklist the modules. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jwhendy 4283 F.... pulseaudio /dev/snd/controlC0: jwhendy 4283 F.... pulseaudio CurrentDesktop: Unity Date: Sat Feb 11 10:52:33 2017 InstallationDate: Installed on 2017-02-11 (0 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Hewlett-Packard HP ZBook 15 G2 ProcFB: 0 nouveaufb 1 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=../vmlinuz-4.4.0-31-generic root=UUID=80262d8f-fc26-45a7-ad8d-1a5bad414250 ro rootflags=compress=lzo,discard,ssd,subvol=hostname luks.allow=discards quiet splash $vt_handoff initrd=../initrd.img-4.4.0-31-generic RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware 1.157.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/13/2015 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M70 Ver. 80.08 dmi.board.name: 2253 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 03.10 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM70Ver.80.08:bd04/13/2015:svnHewlett-Packard:pnHPZBook15G2:pvrA3009DD10303:rvnHewlett-Packard:rn2253:rvrKBCVersion03.10:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ZBook 15 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug xenial ** Summary changed: - tpm_tis + tpm_tis: a TPM error occurred attempting to read a PCR value -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1663904 Title: tpm_tis: a TPM error occurred attempting to read a PCR value To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1663904/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
