Ubuntu
intel-microcode package

  1. Bug #1759920
  2. Comment #72

Comment 72 for bug 1759920

Revision history for this message
Rob Johnson (rob.johnson) wrote : Re: intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux-image-4.13.0-37-generic)

@tyhicks

Gargravarr from #ubuntu-kernel :)

Tested your -38 kernel for this issue from comment #67 and I can confirm it allows me to log in with SSSD and an LDAP user. Outputs for your requested commands:

1)
Ubuntu 4.13.0-38.43+lp1759920.1-generic 4.13.16

2)
BOOT_IMAGE=/vmlinuz-4.13.0-38-generic root=/dev/mapper/ubuntu--vg-root ro

3)
microcode: sig=0x806e9, pf=0x80, revision=0x7c
microcode: Microcode Update Driver: v2.2.

Been experiencing this on a range of Dell laptops, mostly XPS 13's with Kaby Lake i7's (7560U) and a Precision M3520 with a 7820HQ.

Look forward to this going into mainline!

Many thanks everyone for the hard work discovering the root cause of this bug, it's a really mind-bending one!