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- Newsgroups: comp.os.linux
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!caen!spool.mu.edu!yale.edu!jvnc.net!primerd.prime.com!hammer!cummings
- From: cummings@hammer.prime.com (Kevin Cummings)
- Subject: Re: FAQ: Yes, the Dimond Stealth works in 1024x768
- Message-ID: <1992Dec15.190229.6421@primerd.prime.com>
- Sender: cummings@hammer (Kevin Cummings)
- Organization: Prime Computer, Inc.
- References: <crh.723882424@regent.e-technik.tu-muenchen.de> <SVERKERW.92Dec11051515@meryl.csd.uu.se> <badger.724106648@phylo> <1992Dec12.121717.12683@galileo.cc.rochester.edu>
- Date: Tue, 15 Dec 1992 19:02:29 GMT
- Lines: 47
-
- In article <1992Dec12.121717.12683@galileo.cc.rochester.edu>, ctne_ltd@uhura.cc.rochester.edu (Chris Newbold) writes:
- > In <badger.724106648@phylo> badger@phylo.life.uiuc.edu (Jonathan Badger) writes:
- >
- > >> My Diamond Stealth works fine with 640x480x256, but I am unable to
- > >> get a higher resolution out of it.
- >
- > >>Uhoh, the poor wretch is S***t Out of Luck.
- >
- > >>The trick of getting the clock freq. right on Diamond Stealth is by
- > >>doing some heavy, trade-secret, wizardry that the manufacturer won't
- > >>talk about. This means that Linux won't support Diamond Sealth.
- >
- > >It is time to clear up this confusion. The Diamond Stealth works fine
- > >in 1024x768x256 -- the trick is to run Windows first (in 1024x768). This sets
- > >the clocks.
- >
- > >What we really need is a program that can set the clocks within Linux. I often
- > >think the reason this hasn't been written is philosophical rather than
- >
- > I think the easiest way to do this is to put a few more instructions in
- > startup.S. Just kick it into 1024x768x256 and then back to text mode. At this
- > point, you can still use the BIOS.
-
- Yes, but setup.S is getting pretty full. There's not much room left.
- You'll probably want to removed some code and make it a custom patch.
-
- > It's ugly, but at least you don't have to go back and boot DOS every time you
- > need to reset the clocks...
-
- Better would be to program the PLL directly through the IO ports. I suspect that
- this will require some special LINUX system calls that I am not yet familiar
- with.
-
- > Using Diamond Stealth happily at 1024x768x256,
- > -Chris
-
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- Framingham, Mass. Framingham, Mass.
-
- Home: cummings@kjc386.framingham.ma.us Work: cummings@primerd.Prime.COM
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- Std. Disclaimer: "Mr. McKittrick, after careful consideration,
- I've come to the conclusion that your new
- defense system SUCKS..." -- War Games
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