http://bugs.freedesktop.org/show_bug.cgi?id=15105
--- Comment #42 from Egbert Eich 2008-07-29 14:00:18 PST ---
Patrick, I've just pushed a fix. Please leave the projector off while the
system is booting and turn it on before X starts up.
You can turn it on as soon as the kernel comes up because then the BIOS is
already done POSTing the card.
The main difference between POSTing with the projector off and the projector on
is that the BIOS will not set a mode on an output where nothing seems to be
connected.
For the Xserver driver to detect the projector on your RS690 board it needs to
be able to read DDC from it. If it doesn't see DDC it will consider it
undetected.
Apparently the projector doesn't send DDC data when it's off. (Most display
devices do this even in the powered off state as the voltage for the DDC
circuits are supplied by the grahics card).
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