What is sm712fb?

This is a graphics framebuffer driver for Silicon Motion SM712 based processors.

How to use it?

Switching modes is done using the video=sm712fb:… boot parameter.

If you want, for example, enable a resolution of 1280x1024x24bpp you should pass to the kernel this command line: “video=sm712fb:0x31B”.

You should not compile-in vesafb.

Currently supported video modes are:

Graphic modes

bpp 640x480 800x600 1024x768 1280x1024
8 0x301 0x303 0x305 0x307
16 0x311 0x314 0x317 0x31A
24 0x312 0x315 0x318 0x31B

Missing Features

(alias TODO list)

  • 2D acceleratrion
  • dual-head support