[Open-graphics] Re: Jumper count to disconnect DDC from DVI connector

[Timothy Miller]

On 9/8/06, mykrowatt at comcast.net <mykrowatt at comcast.net> wrote:

>    Also, Tim, since it now seems to be settled that the host driver will have to be able to grab and interpret DDC data, which is logically similar to an X modeline though different in format, should we also give the driver the job of interpreting a more human-friendly binary modeline format from the DIPswitch version of the SPI tool?  Or was that what you had in mind to begin with?

This work can be done anywhere.  BIOS, kernel driver, X11 driver.
Perhaps in multiple places at different times.

I think the major issue of contention was whether or not we could do
this before ANY sort of driver (or BIOS code) had started up.

In any of these cases, it's only a small amount of additional software
to read either DDC or SPI, convert them to timing numbers, and feed
them to the video program compiler.