Documentation/fb/efifb.rst

   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
  22         Macbook :
  23                 video=efifb:macbook
  24         MacMini :
  25                 video=efifb:mini
  26         Macbook Pro 15", iMac 17" :
  27                 video=efifb:i17
  28         Macbook Pro 17", iMac 20" :
  29                 video=efifb:i20
  30
  31 Accepted options:
  32
  33 ======= ===========================================================
  34 nowc    Don't map the framebuffer write combined. This can be used
  35         to workaround side-effects and slowdowns on other CPU cores
  36         when large amounts of console data are written.
  37 ======= ===========================================================
  38
  39 Edgar Hucek <gimli@dark-green.com>