For anyone looking for a temporary/unsupported workaround on Thinkpads without disabling the meltdown/spectre protections via noibpb, the mainline kernels (4.14 and 4.15) seem to function.
You can find more information on running them at https://wiki.ubuntu.com/Kernel/MainlineBuilds -- 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