I tested the new kernel in artful-proposed on a system which failed with the newest kernel + intel-microcode in normal artful repository.
Thus I confirm that the kernel in artful-proposed fixes this issue for me. $ apt policy linux-image-4.13.0-39-generic linux-image-4.13.0-39-generic: Installed: 4.13.0-39.44 Candidate: 4.13.0-39.44 Version table: *** 4.13.0-39.44 400 400 http://archive.ubuntu.com/ubuntu artful-proposed/main amd64 Packages 100 /var/lib/dpkg/status $ apt policy intel-microcode intel-microcode: Installed: 3.20180312.0~ubuntu17.10.1 Candidate: 3.20180312.0~ubuntu17.10.1 Version table: *** 3.20180312.0~ubuntu17.10.1 500 500 http://fi.archive.ubuntu.com/ubuntu artful-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu artful-security/main amd64 Packages 100 /var/lib/dpkg/status 3.20170707.1 500 500 http://fi.archive.ubuntu.com/ubuntu artful/restricted amd64 Packages ** Tags removed: verification-needed-artful ** Tags added: verification-done-artful -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1759920/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs