Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.
1 2 What is efifb? 3 =============== 4 5 This is a generic EFI platform driver for Intel based Apple computers. 6 efifb is only for EFI booted Intel Macs. 7 8 Supported Hardware 9 ================== 10 11 iMac 17"/20" 12 Macbook 13 Macbook Pro 15"/17" 14 MacMini 15 16 How to use it? 17 ============== 18 19 efifb does not have any kind of autodetection of your machine. 20 You have to add the following kernel parameters in your elilo.conf: 21 Macbook : 22 video=efifb:macbook 23 MacMini : 24 video=efifb:mini 25 Macbook Pro 15", iMac 17" : 26 video=efifb:i17 27 Macbook Pro 17", iMac 20" : 28 video=efifb:i20 29 30 Accepted options: 31 32 nowc Don't map the framebuffer write combined. This can be used 33 to workaround side-effects and slowdowns on other CPU cores 34 when large amounts of console data are written. 35 36 -- 37 Edgar Hucek <gimli@dark-green.com>