question in enabling agp

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digo_rp
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question in enabling agp

Post by digo_rp »

guys one question, when I enable AGP 4x mode do I have to change frame buffer addres returned by function 0x4F01 from vesa mode?

do I really have to get a new frame buffer like used in agp bus ?
or keep using the same frame buffer returned using function 0x4F01 and enable agp.
?
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Combuster
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Post by Combuster »

vesa returns a pointer to a PCI-configured piece of memory. As long as you dont change that on the card, you dont need to look up your framebuffer location again. Just toggling AGP wont change it. (violation of specs).
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