Re: New Idea? Capture video settings details in Win98/etc. forXFree86

Stephen D. Williams (sdw@lig.net)
Mon, 13 Sep 1999 09:16:12 -0400


kernel@mail.intercomp-sys.com wrote:

> Hmm, I'm affraid it's bad idea..

Please evaluate this again after you really understand what I'm after, explained
below.

> Most of the hardware that windows 98 can find in your PC and SUPPORTED in
> Linux can be found quite easily. Try the latest distributions (Redhat
> Loxar, Caldera OpenLinux 2.3, SuSE 6.2 etc)

I pointed this out. Detecting the hardware all or most of the time isn't the
problem although sometimes detecting ram and clock settings seems deficient.

> Also, Windows like to mess with IRQ's, DMA's and stuff that you'll no
> neccsary agree to the same settings on Linux...

The dot clocks, scan frequencies, and to a lesser extent the video mode are what's
needed. These are the parameters that really need to be tuned manually often with
XFree86 because you don't have the benefit of details of the particular card you
have. These should be register settings in the video hardware which shouldn't
involve any OS details except how to get access to them when they are set properly.

sdw

> Just my opinion.
>
> Hetz
>
> On Mon, 13 Sep 1999, Stephen D. WIlliams wrote:
>
> > (Possibly out of place on this list, but I think the right people are here.)
> >
> > I observed that the hardest part of installing Linux on a misc. machine is
> > configuring the video card/monitor for X (always a problem for desktops) and
> > configuring sound (sometimes a problem for desktops).
> >
> > While detection of the chipset and abilities has been progressing pretty well
> > that there is still a gap in getting the settings reasonable for a particular
> > implementation of that video card and the present monitor.
> >
> > It occurred to me that it is probably possible to write a Win98/NT program
> > that can grab those settings from a running system (configured with card
> > vendor supplied BIOS/drivers) and save them to a floppy for use in installing
> > Linux on that box.
> >
> > I'm speaking generally about the frequency rates, dot clock settings, and
> > other related configuration. Even video mode would be something that would
> > allow the Linux system to start with the same video abilities as the original
> > OS.
> >
> > I'd be surprised if this wasn't thought of before; why can't we do this?
> >
> > sdw

--
OptimaLogic - Finding Optimal Solutions     Web/Crypto/OO/Unix/Comm/Video/DBMS
sdw@lig.net   Stephen D. Williams  Senior Consultant/Architect   http://sdw.st
43392 Wayside Cir,Ashburn,VA 20147-4622 703-724-0118W 703-995-0407Fax 5Jan1999

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