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- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!uwm.edu!linac!att!cbnewsm!cbnewsl!att-out!cbnewsj!etorrem
- From: etorrem@cbnewsj.cb.att.com (engelbert.jgm.torremans)
- Subject: TRIDENT 9000 or IBMSVGA, I seam to have both?????
- Organization: AT&T
- Date: Mon, 21 Dec 1992 10:16:15 GMT
- Message-ID: <1992Dec21.101615.6898@cbnewsj.cb.att.com>
- Lines: 38
-
- Hello All,
-
- Could somebody please explain why the SVGA program is able to identify
- my Trident 9000 card as either a IBMSVGA board or as a Trident 8900 board.
-
- I am currently using the SVGA.EXE program that came with the 32 bit
- Trident display drivers. After powering on my machine and booting with
- DOS 5 the SVGA WHO command identifies my display adapter as Trident 8900.
- If I run in this session Windows 3.1 or PCTOOLS ( and maybe a number of
- other programs, but these are the programs I am sure of) and after that
- run SVGA WHO my display card is identified as IBMSVGA.
-
- Warm or cold boot is not able to change this and the SVGA WHO programs
- keeps identifying my card as IBMSVGA.
-
- After a power on/off everyting is back to normal (Trident 8900)
-
- I guess it is possible to identify a Trident 9000 as a Trident 8900
- because the chipsets are similar, you can also use the same display
- drivers for both chips. But I don't understand why it is possible to
- identify a Trident board as IBMSVGA. Maybe some of you video hardware
- specialists can help me out.
-
- If I do the same booting OS/2 the card is always identified as IBMSVGA.
-
- I think this phenomena has something to do with not being able to use my
- videocard with the Trident high res video drivers. It looks like the card
- is reprogrammed during OS/2 boot (by the OS2LDR program maybe???) and
- after that is no longer recognized as a Trident card. Is it perhaps
- possible to patch the OS2LDR program in such a way that this
- reprogramming (or video mode switching maybe) does not occur anymore.
- Maybe by removing a specific INT10 call ????
-
- Engelbert Torremans
- AT&T-NS-NL
- Huizen
- The Netherlands
- Email:etorrem@cbnewsj.att.com or etorrem@hvlpa.att.com
-