I am stuck trying to boot the live USB to install Ubuntu 20.04 on a brand new Lenovo Yoga C940 14" laptop. The machine boots to the grub menu. Regardless of options, even trying to boot safe mode with nomodeset and removing quiet and splash, I get a black screen after the grub menu.


  • Ubuntu 18.04 desktop boots but does not see the WiFi
  • Ubuntu 19.04 desktop boots but does not see the WiFi
  • Ubuntu 19.10 desktop throws a black screen after the grub menu
  • Ubuntu 20.04 desktop throws a black screen after the grub menu
  • Ubuntu 20.04 server throws a black screen after the grub menu


On a whim, I tried turning secure boot off. That didn't change anything, of course.

I'm starting to think that the laptop needs to go back to Lenovo. It is super dumbed-down with almost no settings in the BIOS to even try turning off. Any ideas?