Hi.

On Thu, 6 Dec 2001 14:16:23 -0800
"Rune Petersen" <[EMAIL PROTECTED]> wrote:

> Egbert Eich:
> > Hm, doesn't sound too good. The problem about the sis driver is:
> > We have no decend documentation for the SiS 630. Even if we did
> > we'd have a hard time: the code that sets up the chip was provided by
> > SiS. What they did was very simple: they translated their i86 machine
> > language BIOS code to C. The code looks horrible! It retreives
Yes it is really dirty.
> > register values from tables in the BIOS and writes them to the chip.
> > It is very likely that later versions of the BIOS do some things the
> > BIOS  that served as base for this code didn't do.
>
> > What happened when you used the old driver - without my patches?

For the newer sis chips / bios version we had to disable the mode-switching
and let the VESA-framebuffer initialize the chip. - I spend many hours
debugging in the stupid sis_bios.[h,c] ... , too.

I have a short info page: 
  http://www.tfh-berlin.de/~s712059/sis630/index.html

I tryed to get docu from sis - even considering signing a NDA - but suddely
the email thread with them stopped ... ? - They so not seem to be interessted
in getting they chip to work properly under Linux ...

> > Regards,
> > Egbert.

Much fun anyway
  Ren� Rebe

-- 
Ren� Rebe (Registered Linux user: #248718 <http://counter.li.org>)

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