Uninstalling the nvidia binary driver (367.57) and moving back to Nouveau "fixed" the problem for me. The reproducibility of this problem seems to dependent on the nvidia video card model, as I have another workstation with another nvidia card model and the other one had no issue with the boot prompt on newer kernel.
The boot prompt UI definitely changed between -31 and -57 and the video driver probably mess up. So I don't think it's the kernel itself but plymouth (? or whatever prompts for the FDE password) upgrade that happened around the same time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1640297 Title: 16.04.1 LTS hang during boot 4.4.0-45-generic with /etc/crypttab. Boots fine in 4.4.0-42-generic and older To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1640297/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs