Mail Archives: opendos/2006/03/13/06:53:00
da Silva, Joe wrote:
>Also, I can't find the relevant code in the MGL sources.
>Although there is a brief mention of ET6000 in one small
>text document, there seems no mention in the code itself.
>I suspect the stuff I want is not in the public sources?
The Scitech library should offer you the possibility to
do use the Scitech SNAP Video drivers. SNAP video has
configuration and display centering tools that allow
you to create custom graphic modes with nearly any
thinkable refresh rate.
Previously this was available in their UniVBE suite
(now free but no longer developed, ET6000 should be
supported).
I currently use the Scitech SNAP video for OS/2 and
like it very much. I hope to have time someday to
compile the MetaGraphicsLibrary to an DLL to be
loadable from DPMI32 pascal code..
>As for the VESA level, unfortunately it is only V2.1, so
>that's no help with this problem either.
Pity. You could try to reverse engeneer how the Tseng tools
+BIOS set the refresh rate.
>From the ET4000 information, I can see this stuff is very
>complicated and messy, with lots of bits scattered between
>different registers. So trying to reverse-engineer something
>like XFree86 to figure out what's what on the ET6000 is
>beyond my capabilities. There just has to be a datasheet
>for the ET6000 out there somewhere, if only I can find it.
Another idea for an 'cheap' solution. Use a environment that
sets the desired refresh rate (Scitech, XFree, Windows, ..)
and the dump the registers. Disadvantage is that you still
have to look for 'configuration lock' bits etc..
--
Veit Kannegieser
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