[Bug 1760264] Re: New version of intel-microcode freezes computer

[Paul Nickerson]

For me, both intel-microcode 3.20180312.0~ubuntu17.10.1 amd64 and linux-
image-4.13.0-37-generic 4.13.0-37.42 amd64 got installed at the same
time. On my next boot and every boot after that, my computer would hang
hard after I typed in my password at the login screen and hit enter. My
cursor would appear on a black screen, and then it hung.

I did not try downgrading intel-microcode, but I did try selecting
linux-image-4.13.0-36-generic 4.13.0-36.40 amd64 in GRUB on boot. That
did work.

So I believe we may have found two different workarounds to the same
bug, maybe.

I was able to SSH into the computer from a different machine while at
the login screen and run journalctl -f before I tried to log in, and
that got me more log entries than were written to disk. But, I still
feel like I did not get to see the final actions before the hang; they
never got logged or didn't make it over the SSH tunnel.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to intel-microcode in Ubuntu.
https://bugs.launchpad.net/bugs/1760264

Title:
  New version of intel-microcode freezes computer

Status in intel-microcode package in Ubuntu:
  Confirmed

Bug description:
  The problem appears on 3.20180312.0~ubuntu17.10.1 version. System
  freeze completely on login screen. Can't move mouse and switch to
  virtual console. After downgrade to 3.20170707.1 made in recovery mode
  everything back to normal. I have Intel Core i7-4700HQ.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: intel-microcode 3.20170707.1
  ProcVersionSignature: Ubuntu 4.13.0-37.42-lowlatency 4.13.13
  Uname: Linux 4.13.0-37-lowlatency x86_64
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  Date: Sat Mar 31 06:26:06 2018
  InstallationDate: Installed on 2015-02-13 (1141 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: intel-microcode
  UpgradeStatus: Upgraded to artful on 2017-10-20 (161 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1760264/+subscriptions