Burning out monitors with incorrect drive signals is no myth. I've
got three high-end fixed-frequency monitors whose tech manuals warn against
that in the strongest terms. Their sharpness is outstanding, but they can't
tolerate mode-switching. They come from the days when there were no
published standards, and every video board and monitor was custom. A
workstation would run with exactly one graphics board, which was factory
hardwired to exactly one mode, and it was sold with a monitor designed from
the ground up for that mode and no other.
Newer monitors are protected against excessively high sweep rates,
because newer computers are a lot less predictable in the video modes they
can generate.
In earlier discussions on this list I proposed exactly the feature
for OGC1 that you did: a way to lock the board to one mode, so that it will
power up in the correct mode for a fixed-frequency monitor, and have no
concept of software commands capable of changing the mode.
It would be inappropriate for OGD1, and in any case I wouldn't
suggest making hardware feature changes this late in the project. The
object now is to get a development board working and get on with the
project.
But I would like to bring this up again when the agenda opens for
OGC1 features.
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