On Thu, 7 Jan 1999, Mark J. Foster wrote:

: As I'm working on my SHARK home control software, I've decided that I'll
: be using PIP (Picture-In-Picture) to control my system...  whenever you
: push anything requiring a menu, it'll automatically bring it up on the
: TV screen using PIP.  Since I'm not wealthy enough to own a TV with RGB
: input, does anyone know what the formula is to enable TV-out on a SHARK
: in X-Windows?

Use 640x480 resolution with `standard' video sync rates (31.5KHz horizontal,
60Hz vertical).  The hardware will interlace the video down to 15KHz
internally.  Note that this *won't* work with the pc0 text console - that
uses a higher vertical refresh rate and will make a TV `roll'.  It works
only with the OpenFirmware console and X.

The output is _composite_, not RF, so it should either work well with a
standard PIP (composite video in), or for a `real' TV connection you will
need a RF modulator.  (Yes, the little rectangular hole above the `TV'
connector was intended to be for a channel number switch, with an internal
RF modulator.)  I've fpound that some (maybe most) of the composite outputs
are coming out in black and white, luminance only.  If someone can verify
color operation on composite, please do!

-- 
-- Todd Vierling (Personal tv@pobox.com; Bus. todd_vierling@xn.xerox.com)