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Xref: sserve comp.os.386bsd.development:344 comp.os.linux:32271 Newsgroups: comp.os.386bsd.development,comp.os.linux Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!saimiri.primate.wisc.edu!zaphod.mps.ohio-state.edu!uwm.edu!msuinfo!uchinews!att-out!cbnewsj!dwex From: dwex@cbnewsj.cb.att.com (david.e.wexelblat) Subject: Re: [Q] Xconfig for ATI Wonder V3? Organization: AT&T Date: Tue, 30 Mar 1993 17:06:56 GMT Message-ID: <1993Mar30.170656.28858@cbnewsj.cb.att.com> References: <paul.733385642@suite.sw.oz.au> <1993Mar29.185005.9512@exu.ericsson.se> Lines: 49 In article <1993Mar29.185005.9512@exu.ericsson.se> lmcdefo@lmc.ericsson.se (Denis Fortin) writes: > In article <paul.733385642@suite.sw.oz.au>, paul@suite.sw.oz.au (Paul Antoine) writes: > |> I've read everything I could find on deriving Xconfigs, including > |> readme's etc, but could find nothing that would work with my > |> (admittedly old) ATI VGA Wonder card (it's the early V3 version). > |> > |> Comments in the driver such as 'V3 board support needs a lot of work - > |> I suspect it isn't worth it' lead me to believe that the support is > |> shakey at best. > > I haven't looked at the X386 for the past couple of years, but at the time > I wanted to add in support for my ATI VGA Wonder card (it's one of the old > V3 type). > > I ordered the documentation for ATI, only to find out that in V3 you can't > define different read and write addresses when you access pixels. Therefore, > you cannot blit from one place to the next: you need to read into RAM and > then copy back into the video card at the new location. This is a pain to > do, and the preliminary X386 ATI support I had seen a couple of years ago > very wisely (?!) avoided touching that. > If that's the only problem, XFree86 now supports single-bank BitBlts (added for the brain-dead Trident chipsets). It does the horrible/nasty/ugly scheme of slurp-into-a-buffer-then-spew-it-out. What's really nuts is that the Trident 8900C supports two banks - but the 1-bank code is 10% faster than the 2-bank code. Go figure. > I assumed that this is what is meant in the comments by "V3 board support > needs a lot of work". > > The point is a bit moot for me anyway, since my Unix machine only has 4MB > of memory and X wouldn't run well with that little memory (the NT machine > has 16 MB, but that's another story). > > Good luck, and let me know if you find anything... > -- > Denis Fortin, Principal consultant fortin@zap.uniforum.qc.ca > DMR Quebec Inc, +1 (514) 877-3301 lmcdefo@lmc.ericsson.se > Disclaimer: any opinions in this posting are my own. -- David Wexelblat <dwex@mtgzfs3.att.com> (908) 957-5871 AT&T Bell Laboratories, 200 Laurel Ave - 3F-428, Middletown, NJ 07748 "Love is like oxygen. You get too much, you get too high. Not enough and you're gonna die." -- Sweet, Love Is Like Oxygen