external ibook-2 video


Subject: external ibook-2 video
From: Bill McKie (mckie@sky.arc.nasa.gov)
Date: Sun Jan 27 2002 - 00:33:55 MST


Hardware:
 iBook-2
 8 MB ATI Rage Mobility 128
 12" TFT XGA 1024x768 builtin screen
 External RGB & Audio/video ports

S/W:
 YDL-2.1
 (XFree86-4.1.0-3d)

The notebook's builtin screen video works very well under both
YDL-2.1/XFree86 and MacOS-X. And MacOS-X drives either of the
external video ports very well to reproduce the contents of
the screen through a video projector or on a TV.

But the iBook's external video ports appear to become disabled
sometime between the yaboot system selection and the completion of
ydl booting.

We need to be able to project the screen contents when running
ydl, and would prefer to use the notebook's external RGB
port (which seems to provide SVGA via the iBook's RGB
Display Adapter under MacOS-X).

How do we activate the external video ports under ydl-2.1, such
that the external video ports reproduce what is on the iBook's
builtin 1024x768 screen?

Thanks
Bill McKie
NASA Ames Research Center
mckie@sky.arc.nasa.gov



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