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How do I set the Coordinate Transformation Matrix in xorg.conf?

Right now, I have it set in a script on startup, but ideally - I would like to be able to unplug the screen and plug it back in and the settings still be used.

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up vote 1 down vote accepted

Figured it out by looking in the source:

Option "TransformationMatrix" "0.36 0 0.64 0 1 0 0 0 1"
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