Can you see if the 4.15-rc6 kernel has the same issue: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc6
** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: linux (Ubuntu) Status: Incomplete => Triaged ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1741167 Title: Mainline kernel 4.14.11 not booting on Lenovo X220 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1741167/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs