----- Original Message -----
From: "Dave McGuire" <mcguire@neurotica.com>
To: <port-vax@netbsd.org>
Sent: Sunday, July 14, 2002 02:01 PM
Subject: Re: VAXstation 4000/90 Success!On July 13, Robert Schaefer wrote:


> On July 14, Peter C. Wallace wrote:
> > Actually it's easy to detect if a monitor is connected (and I know
> > that the PMAGB-B does this) Just set the RAMDACs output current up to
full
> > scale, the lack of the 75 Ohm termination in the monitor will cause the
> > output voltage on the R|G|B signals to be double (assuming they are
reverse
> > terminated) or more than double the expected value. A simple DC
comparator
> > will now tell you if a monitor is connected...
>
>   Eeew, are you sure it does that?  That's *wild*.  I stand very much
> corrected.

Whew!  Saves me from having to grovel an apology for passing on Unverified
Information!

>
>   "Just when you thought you'd seen it all..." ;)
>
>     -Dave

Bob