How to get UEFI console resolution on a non-UEFI boot device

[Aryeh Friedman]

I really like the resolution settings on the UEFI console but my machine
doesn't support UEFI.  How can I get the same resolution on this machine?

Some things I have already tried/other notes:

* I have a nVidia card using x11/nvidia-driver-390 (card not supported on
newer drivers)
* There is no on board video on the MB
* I have played with the settings suggested in vt(4), sc(4) and
vidcontrol(1)

Here is my current /boot/loader.conf:

kern.vt.fb.modes="3840x2160"
kern.vty=vt
nvidia-modeset_load="YES"
linux_load="YES"
fuse_load="YES"

-- 
Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org