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Tip revision: b2cd1df66037e7c4697c7e40496bf7e4a5e16a2d authored by Linus Torvalds on 07 January 2018, 22:22:41 UTC
Linux 4.15-rc7
Tip revision: b2cd1df
efifb.txt

What is efifb?
===============

This is a generic EFI platform driver for Intel based Apple computers.
efifb is only for EFI booted Intel Macs.

Supported Hardware
==================

iMac 17"/20"
Macbook
Macbook Pro 15"/17"
MacMini

How to use it?
==============

efifb does not have any kind of autodetection of your machine.
You have to add the following kernel parameters in your elilo.conf:
	Macbook :
		video=efifb:macbook
	MacMini :
		video=efifb:mini
	Macbook Pro 15", iMac 17" :
		video=efifb:i17
	Macbook Pro 17", iMac 20" :
		video=efifb:i20

Accepted options:

nowc	Don't map the framebuffer write combined. This can be used
	to workaround side-effects and slowdowns on other CPU cores
	when large amounts of console data are written.

--
Edgar Hucek <gimli@dark-green.com>
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