[Bug 1759920] Re: linux-image-4.13.0-37-generic locks up at login screen with intel-microcode 3.20180312.0

[Jeremy Gebben]

ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 17.10
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
Package: linux
PackageArchitecture: amd64
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
 TERM=screen-256color
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, no user)
ProcVersionSignature: Ubuntu 4.13.0-36.40-generic 4.13.13
Tags:  artful
Uname: Linux 4.13.0-36-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: Domain Users adm cdrom dialout dip lpadmin plugdev sambashare sbuild sudo wireshark
_MarkForUpload: True


** Tags added: apport-collected

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https://bugs.launchpad.net/bugs/1759920

Title:
  linux-image-4.13.0-37-generic locks up at login screen with intel-
  microcode 3.20180312.0

Status in intel-microcode package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed
Status in intel-microcode source package in Artful:
  Confirmed
Status in linux source package in Artful:
  Confirmed

Bug description:
  I don't know if this is a problem with the kernel or the microcode,
  but we have a significant number of computers in our organization (on
  both 16.04 and 17.10) that fail if they have both updated.  Booting
  with either linux-image-4.13.0-36-generic or intel-microcode
  3.20180108.0+really20170707ubuntu17.10.1 allows all these computers to
  boot.

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