> From: Mark F Willey <willey@ecn.purdue.edu>
> Subject: Booting NetBSD/HP300 on serial console
> To: port-hp300@NetBSD.ORG
> Date: Thu, 15 Dec 1994 23:14:47 -0500 (EST)
> 
> ...
> Hmmm..  could be.  Here's the model numbers:
> 
> Monitor: 98752A
This is for a 1280x1024 card

> Working HP's video: 98550A
This is an 8-bit color 1280x1024 card

> New HP's video: 98545A
This is an older 4-bit color 1024x768 card

So you definately need a different display for the latter.
Can't remember the number right now, but I can get it for you tomorrow
if you care.