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- Path: sparky!uunet!stanford.edu!leland.Stanford.EDU!heinrich
- From: heinrich@leland.Stanford.EDU (Mark Andrew Heinrich)
- Subject: ET4000 Interlaced/Non-interlaced Problem
- Message-ID: <1992Jul22.081753.14915@leland.Stanford.EDU>
- Sender: news@leland.Stanford.EDU (Mr News)
- Organization: DSG, Stanford University, CA 94305, USA
- Date: Wed, 22 Jul 92 08:17:53 GMT
- Lines: 37
-
- I have a generic ET4000.
-
- When I run svga on under a real (booted, not VDM) DOS prompt it fills
- in my 1024x768 16 and 256 color modes with InterlaceMode=0. When I run
- svga on from a full-screen DOS session under OS/2 it fills in the same modes
- with InterlaceMode=1. From looking at the settings I have determined that
- InterlaceMode=0 actually means the card is being driven interlaced (Go
- figure).
-
- I am using Orchid's 0.9 1024x768x256 driver. Using the svgadata.pmi
- file generated in the first case, the WPS is fine and everything appears
- to work--UNTIL I go into any 1024x768 (16 or 256 color modes) through a
- DOS session (this includes WIN-OS2). In these modes the bright colors
- shimmer badly and the screen is painful to look at.
-
- Using the svgadata.pmi file generated in the 2nd case (NI), the WPS has the
- same shimmering that only occurred in the DOS sessions before, and it
- is completely unusable.
-
- It seems that the Orchid drivers work in interlaced 1024x768 and shimmer in
- non-interlaced 1024x768, and that's fine with me, but the DOS 1024x768 gif
- viewers and windows drivers are non-interlaced and are unusable.
- Note these programs do not shimmer under NATIVE DOS.
-
- To get my 1024x768 DOS programs to run (and Windows driver) what do I need
- to do? Are there interlaced ET4000 1024x768x256 Windows drivers? Since
- running svga on under OS/2 sets up my 1024 modes as non-interlaced is it
- doing so incorrectly? Does anyone else have this problem? It would
- be nice to brainstorm on this one.
-
- Help is welcomed,
- Mark
- --
- Mark A. Heinrich
- E-Mail: heinrich@leland.stanford.edu
- "I wanna be like Mike." -- Dean Smith
- 3PEAT!!!
-