This bug might be a duplicate of bug 1720219. Can you see if this bug happens with the latest 4.13 kernel:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13.16/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1753614 Title: ^@ characters appearing on login terminal on 17.10 and 16.04 HWE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1753614/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
