FYI: These are the signatures for my three systems.
Failing for these on 17.10 (4.13.0-37-generic):
signature 0x000306c3 (and for 4.13.0-38-generic)
signature 0x000206a7
OK for this on 18.04beta (4.15.0-13-generic):
signature 0x000306d4
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https://bugs.launchpad.net/bugs/1759920
Title:
intel-microcode 3.20180312.0 causes lockup 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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1759920/+subscriptions
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