Messages in this thread |  | | From | David E A Wilson <> | Subject | Re: SVGA kernel chipset drivers. | Date | Mon, 3 Jun 1996 10:09:01 +1000 (EST) |
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On Sat, 1 Jun 1996, Linus Torvalds wrote: >Finally, IO port acccess is not at all less critical. As far as I know, >there are _no_ PC graphics cards that you can really program without >using IO ports. Stuff like colourmaps etc are almost invariably done with >IO port access on PC's.
I believe that I have such a card - an Eizo MD-B09 TMS34010 based card driving a 21" monochrome monitor. The interface between the ISA bus and the display (when not emulating a CGA/MDA/HGC) is a 4KB memory window in the upper memory area (C0000..DFFFF). True, my card has no colormaps but other cards in the series (MD-B08 or MD-B10?) do support color monitors. These are all TIGA cards, quite high end in their day but now it seems that VLB/PCI SVGA cards can exceed their performance.
If anyone has any information on programming such a card I would be greatful if they could get in touch with me. It seems a shame not to be able to use this card to any effect under Linux when I get a 1664x1200 desktop under Win 3.11. It co-exists quite well with my color SVGA card & monitor. -- David Wilson Dept CompSci Uni Wollongong Australia david@cs.uow.edu.au
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