Public bug reported:
I originally filed a bug against the fwupd software
(https://github.com/fwupd/fwupd/issues/2508) from where it transpired
that this problem was with the tpm package rather than with fwupd.
Some evidence is in:
$ sudo cat /sys/kernel/security/tpm0/binary_bios_measurements
Killed
The device is an XPS 13 9300 (2020 model).
I can reproduce the problem on kernels 5.8, 5.9 and 5.9.1 too. Haven't
tried any other kernel versions.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-52-generic 5.4.0-52.57
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.10
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: sander 2665 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 24 14:29:34 2020
HibernationDevice:
# RESUME=UUID=e2b4846f-867a-4f84-a3d7-0f5d10d24a33 resume_offset=31260671
# RESUME=UUID=6a9d6823-9903-4887-bd63-11831c1218c0
# RESUME=/dev/nvme0n1p7 resume_offset=31260671
# RESUME=/dev/nvme0n1p7
# Resume from /swapfile
InstallationDate: Installed on 2020-04-01 (206 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: Dell Inc. XPS 13 9300
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-52-generic
root=UUID=e1b4846f-867a-4f84-a3d7-0f5d10d24a33 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-52-generic N/A
linux-backports-modules-5.4.0-52-generic N/A
linux-firmware 1.187.3
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-04-24 (183 days ago)
dmi.bios.date: 08/13/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.2.0
dmi.board.name: 0Y4GNJ
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.2.0:bd08/13/2020:svnDellInc.:pnXPS139300:pvr:rvnDellInc.:rn0Y4GNJ:rvrA01:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9300
dmi.product.sku: 096D
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1901312
Title:
tpm module malfunctions
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