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

[林博仁]

This is a Ivybridge based laptop, ASUS S550CB to be specific.

** Attachment added: "Output of `sudo iucode-tool --scan-system`"
   https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1759920/+attachment/5095608/+files/iucode-tool_--scan-system.output

** Summary changed:

- linux-image-4.13.0-37-generic locks up at login screen with intel-microcode 3.20180312.0
+ intel-microcode 3.20180312.0 causes locks up at login screen(w/ linux-image-4.13.0-37-generic)

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

Title:
  intel-microcode 3.20180312.0 causes locks up at login screen(w/ linux-
  image-4.13.0-37-generic)

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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