Kernel-4.18.0-80.el8_efifb

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