On Jul 13, 13:50, Zane H. Healy wrote:
> > I do not know much about any other 13W3 monitors, except that SGI also
has
> > their own 13W3 pinout, but you can make a swabber.
>
> I thought SGI and Sun used the same pinout.
Only for the R,G,B coax connections. The rest of the pins are used for
various monitor-type-sense and sync signals, and the SGI and Sun pinouts
are quite different. To make matters worse, many SGI-badged monitors don't
have the sync pins connected on the 13W3 (though you'll find articles on
the web that explain how to get at the internal connections). And then to
add insult to injury, SGI only put as many pins in their cables as they
actually need (Sun mostly use fully-wired cables). Beige Indigo cables
have one less pin than grey Indy cables!
Lawrence is broadly correct about SGI/Sun and sync-on-green/composite sync.
Indys and Indigos can generate separate sync, but the contemporary
monitors mostly don't use it. The later ones do; the lack of sync is used
to put the monitor into power-save, and Indys and O2s running IRIX 6.5 have
*two* screensaver delays: the first for the saver to kick in, the second
for the sync to be shut off to cause the monitor to power-save.
In my experience, like Lawrence's, most badged monitors can handle all
types of sync if you can get at it. The GDM-17E11 (SGI-badged Sony) for
example has the sync connections inside, just not on the 13W3, and works
fine with PCs and Suns if you add two wires. My HP-badged and DEC-badged
GDM-1961HA, with 5 BNC and 3 BNC respectively, both support sync-on-green,
and the DEC one has places to fit the extra 2 BNCs inside (IIRC you need to
add resistors as well, and obviously you need to knock out two holes in the
case).
--
Pete Peter Turnbull
Network Manager
University of York
Received on Fri Jul 13 2001 - 19:07:45 BST