| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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> |