> -----Original Message-----
> From: ilug-admin at linux.ie [mailto:ilug-admin at linux.ie]On Behalf Of John
> On Thu, Mar 09, 2000 at 02:07:42PM +0000, Paul Jakma mentioned:
> > XFree 3.9 also has some {DDC,DCC} stuff in it, and iirc it's supported
> > by a number of driver modules, eg Matrox. No idea whether it's used per
> > default though, maybe you need to tinker with the config. Best check the
> > XFree release notes.
>> xena [0] grep -i dcc RELNOTES.TXT
> xena [1] grep -i ddc RELNOTES.TXT
> xena [1]
Unfortunately, the standards aren't free, but:
From www.vesa.org:
VESA BIOS Extensions/Display Data Channel Standard (VBE/DDC) - Version 1.1:
Defines a set of functions to retrieve the EDID data structures from the
display over the Display Data Channel. These functions supplement the VESA
Video BIOS Extensions (VBE) normally provided in ROM with the display
controller and accessed through interrupt 10h.
IIRC DDC is a way for the monitor to comunicate its capabilities to the
video card. That's
why Win98/2K can say "I've detected you have a Dell 1025HE monitor, and I'm
going to
install some other drivers..."..
L.
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