I've been having this same issue on ubuntu mate 17.10 on a thinkpad T450s since kernel 4.13.0-25, and was booting with previous 4.13.0-21. Just tried #14 suggestion (adding noibpb) and it fixed it here.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1746418 Title: System freezes when starting Xorg after installing linux- image-4.13.0-32-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1746418/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs