Testbios works for ATI too !!!

Li-Ta Lo ollie at lanl.gov
Thu May 27 16:14:00 CEST 2004

On Thu, 2004-05-27 at 15:21, Richard Smith wrote:
> ron minnich wrote:
> > On Thu, 27 May 2004, Richard Smith wrote:
> > 
> > 
> >>I don't suppose there is a way to use testbios with a system having 2 
> >>video cards is there?
> > 
> > the spec says that you can call a card bios with a devfn and it should all 
> > work. Not all cards work however as their bios is brain-dead.
> The bios also has to know if it should enable decode of the legacy vga 
> IO registers.  How would you tell it that?

There is a terrible way to do that. There is some INT 10 call which
can disable the legacy vga decode for the "current" vga device.


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