Anthony, I had that problem with fresh Lubuntu 16.04 on Toshiba Sattelite L300. I don't know why but after a while the problem disappeared. Try "sudo update-initramfs -ck all" and removing of "quiet" option from /etc/default/grub (and then "sudo update-grub").
And if "nopti" option doesn't help I think you should make a separate bug report.
Anthony, I had that problem with fresh Lubuntu 16.04 on Toshiba Sattelite L300. I don't know why but after a while the problem disappeared. Try "sudo update-initramfs -ck all" and removing of "quiet" option from /etc/default/grub (and then "sudo update-grub").
And if "nopti" option doesn't help I think you should make a separate bug report.