[Bug 1903883] Re: XPS 13 9310 Tiger Lake Unable to boot 20.10 after intel-microcode update 3.20201110.0ubuntu0.20.10.1

[Pierre]

I've been struck by the exact same bug on a Core m3-6Y30 (affecting
Ubuntu 20.04 but also 18.04 with corresponding package) all the same
after updating to the 3.20201110.0ubuntu0.20.04.1 version.

The 3.20201110.0ubuntu0.20.04.2 fix is not helping. I have to keep the
3.20200609.0ubuntu0.20.04.2 to avoid being stuck at "Loading initial
ramdisk".

Not too sure how I should report this considering all the open reports
on the launchpad page: https://bugs.launchpad.net/ubuntu/+source/intel-
microcode

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https://bugs.launchpad.net/bugs/1903883

Title:
  XPS 13 9310 Tiger Lake Unable to boot 20.10 after intel-microcode
  update 3.20201110.0ubuntu0.20.10.1

Status in intel-microcode package in Ubuntu:
  Fix Released

Bug description:
  XPS 13 9310 Tiger Lake i7 running Ubuntu 20.10 (machine came with
  Ubuntu 20.04 from the OEM)

  Update to intel-microcode 3.20201110.0ubuntu0.20.10.1 on reboot causes
  what looks like a black screen with corrupted artifacts on it and the
  system restarts, from dmesg upon booting into fallback kernel I these
  errors from previous boot

  [    1.286211] kernel: [Hardware Error]: event severity: fatal
  [    1.286217] kernel: [Hardware Error]:  Error 0, type: fatal
  [    1.286218] kernel: [Hardware Error]:   section_type: Firmware Error Record Reference
  [    1.286218] kernel: [Hardware Error]:   Firmware Error Record Type: SOC Firmware Error Record Type2
  [    1.286219] kernel: [Hardware Error]:   Revision: 2
  [    1.286220] kernel: [Hardware Error]:   Record Identifier: 8f87f311-c998-4d9e-a0c4-6065518c4f6d


  [    1.286365] kernel: [Hardware Error]:  Error 1, type: fatal
  [    1.286365] kernel: [Hardware Error]:   section_type: Firmware Error Record Reference
  [    1.286366] kernel: [Hardware Error]:   Firmware Error Record Type: SOC Firmware Error Record Type2
  [    1.286366] kernel: [Hardware Error]:   Revision: 2
  [    1.286367] kernel: [Hardware Error]:   Record Identifier: 8f87f311-c998-4d9e-a0c4-6065518c4f6d


  Kernel with this issue is linux-image-5.8.0-28-generic, falling back
  to 5.8.0-26-generic in GRUB results in the machine booting up fine

  I've tried rebooting several times with the machine on and off power supply and get the same result each time
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-focal-amd64-20200502-85
  DistroRelease: Ubuntu 20.10
  InstallationDate: Installed on 2020-10-07 (35 days ago)
  InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
  Package: intel-microcode 3.20201110.0ubuntu0.20.10.1
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/usr/bin/zsh
  ProcVersionSignature: Ubuntu 5.8.0-26.27-generic 5.8.14
  Tags:  groovy
  Uname: Linux 5.8.0-26-generic x86_64
  UpgradeStatus: Upgraded to groovy on 2020-11-02 (8 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True

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