Jeremy Jackson wrote:
>
> "Eric W. Biederman" wrote:
>
> > If you have a framebuffer driver for the video card you shouldn't need
> > to even touch the video bios. Worst case is that you need to tweak it
> > to actually initialize the video card from the completely unitialized
> > state.
>
> why the difficulty with cirrusfb on linuxbios.org then? why does xfree86
> do use the video bios for multi-headed initialization? I don't think this is
> trivial,
> since video card register specs seem to be hard to get (NDA) in many cases
> and/or the init sequence is complicated.
It is as difficult to get documents on any other parts of the HW as VGA
as long as the vendor has no idea about OSS. Ron et. al. are still
struggling on ALi/VIA/Intel stuff. The reason you don't encounter this
kind of trouble BEFORE is:
1. Tranditonal BIOS does the dirty jobs.
2. You never need to init the second chipsets in the system.
The XFree86 has their reason the lower their "moral standard". But I do
think the way XFree86 doing 4.0 is far backward.
Ollie
