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- From: jem@sunSITE.unc.edu (Jonathan Magid)
- Subject: Re: Diamond Card Question (I've read the FAQ too!)
- Message-ID: <1992Dec17.015548.18117@samba.oit.unc.edu>
- Sender: usenet@samba.oit.unc.edu
- Nntp-Posting-Host: sunsite.unc.edu
- Organization: University of North Carolina, Chapel Hill
- References: <btenison.921216154457@tesla.ee.eng.auburn.edu>
- Date: Thu, 17 Dec 1992 01:55:48 GMT
- Lines: 42
-
- In article <btenison.921216154457@tesla.ee.eng.auburn.edu> btenison@eng.auburn.edu (Bruce Tenison) writes:
- >
- >Hi all! I was wondering about the Diamond Speedstar 24 and X. The FAQ says
- >that Diamond cards will NOT be supported, but this card is an ET4000 card.
- >The FAQ says X supports these, so I'm kinda in a quandry. Does it support my
- >card. If not, Diamond's getting yet another call!!!
- >
-
-
- ok, this is the deal. the 24 is an et4000 but Diamond has a programmable
- dot clocks on the board (the ones that drive the image). Unfortunately
- Diamon refuses to give information on how to program them without
- the author signing a non-disclosure agreement. The authors of XFree86
- cant do this, because they need to make the source code available.
-
- So that is the quandry. The solution is to program the clocks by another
- method. So, what people have been doing is booting DOS, running MS-windows
- in the desired resolution and warm booting to linux. Apparently the clocks
- stay programmed across warm boots.
-
- This is ugly, but one of the only solutions that have been found. There
- are 2 others that aren't so simple:
-
- 1) add a BIOS call to the Linux setup code that puts the clocks in the
- write speed.
-
- 2) disassemble the bios of the card and find out how the cards are set.
- This has been done by someone who announced his results anonymously: but
- since the legal status of disassembled code is, to say the least, ambiguous,
- there has been nothing (public) done with the results of this information.
-
- Although I suspect if one looked around for it hard enough one could find
- it...
-
- jem.
-
-
-
- --
- Jonathan Magid jem@sunSITE.unc.edu sunSITE Administrator
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