*BSD News Article 76930


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Support for fixed-scan monitors
Date: 26 Aug 1996 07:11:53 GMT
Organization: Private BSD site, Dresden
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Jim Durham <durham@w2xo.pgh.pa.us> wrote:

> I poked around through syscons.c, looking for where the VGA card gets
> initialized to 640x480, and realized that it probably is just leaving
> it the way the bios set it up during the system bootstrap.

There's no generic method to initialize an SVGA to anything larger
than 720x400 (or 720x480) for text displays.  The major handicap is
that wider displays need a higher clock frequency, and in particular
for modern boards with their clock synthesizers, this becomes very
tricky and hardware-dependent.

Remember, the amount of hardware-specific code in XFree86 is about
200000 lines!

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)