Re: Radeon 9200 and interlace

> Advmame doesn't complain when starting an intelaced display (e.g. tapper) 
> but
> the display is messed up. What happens is that in the top half of the 
> display
> the first half of the even lines are displayed and in the bottom the first
> half of the odd lines are shown (confirmed with a camera)
>
> So instead of a normal interlace display where lines are display as:
> 0,2,4,...,446 VBLANK 1,3,5,...,447
>
> It is displayed as
> 0,2,4,...,222,1,3,5,...,223 VBLANK 0,2,4,...,222,1,3,5,...,223
>
> I am using the dos version of advmame87
>
> Interlace works fine in windows with powerstrip.
>

This behaviour is replicated in Linux using both the SVGALIB and framebuffer 
drivers. Is it therefore a problem with AdvanceMAME itself?

I notice that X can display interlace modes on my Radeon with no problems. 
Presumably it is therefore possible for AdvanceMAME to do the same with an 
appropriate fix. Is this ever likely to happen?

It would be great to get interlace modes working with AdvanceMAME. For one 
thing it would save me having to keep XMAME on my hard drive to play Spy 
Hunter!

Jamie 



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