Restoring sc console look and feel with vt

[Ian Smith]

On Sat, 16 Sep 2017 02:37:15 +1000, Ian Smith wrote:

Ok, I was just being lazy.  Hunting these commit messages earlier - once 
I was on a roll finding 'gop' in framebuffer.c - would have furthered.

State of play on HEAD:

https://svnweb.freebsd.org/base/head/sys/boot/efi/loader/arch/amd64/framebuffer.c?view=log

And on 10.3.0 (RELEASE), just prior to release, looks like.

https://svnweb.freebsd.org/base/release/10.3.0/sys/boot/efi/loader/arch/amd64/framebuffer.c?view=log

where r287299 from above, plus 6 others, was MFC'd to 10.3 as r295872:

=======
Revision 295872 - (view) (download) (annotate) - [select for diffs]
Modified Mon Feb 22 00:49:35 2016 UTC (18 months, 3 weeks ago) by marius
Original Path: stable/10/sys/boot/efi/loader/arch/amd64/framebuffer.c
File length: 15247 byte(s)
Diff to previous 294981

MFC: r287299 [1]

Add a gop command to help diagnose VT efifb problems. The gop
command has the following sub-commands:
  list		- list all possible modes (paged)
  get		- return the current mode
  set <mode>	- set the current mode to <mode>

MFC: r287317, r287422, r287475, r287489, r287538 [2]

Add support for the UGA draw protocol. This includes adding a
command called 'uga' to show whether UGA is implemented by the
firmware and what the settings are. It also includes filling
the efi_fb structure from the UGA information when GOP isn't
implemented by the firmware.

PR:		207313 [1], 202730 [2]
Approved by:	re (gjb)
=======

Still it's a bit sad that these commands haven't made it into loader(8).

cheers, Ian