I have an HP Zbook running Ubuntu-gnome 14.04.3 LTS x64. This machines comes with the nvidia K610m video card. Here is my issue: Leave the default BIOS setting to "Legacy" and install Ubuntu. Once complete, run "additional drivers" and change to the nvidia driver, restart the workstation. Everything works fine. Change the BIOS setting to UEFI-Native and install Ubuntu. Once complete, run "additional drivers" and change to the same nvidia driver, restart the workstation. No longer able to successfully boot the workstation. Boot process stops at Restoring Resolver State. The only solution is to hit CTRL-ALT-F3 and login at the console level and run "$ sudo apt-get remove nvidia-xxx" restart the workstation and it works again.
The issue is clearly with the UEFI setting and not the nvidia driver or the kernel - any thoughts on how to correct this?