> macvid0 at nubus0: Spectrum/24 PDQ Plus v1.292

This may be your problem right here. Your board may not be supported by the
LKM. If it's not then odds are your card's ROM wants to poke someplace
it isn't allowed to under NetBSD.

Many cards are like this. Unfortunately, while the A-Trap emulation scheme
used in the LKM is cool and sometimes works, it still doesn't work all the
time.

Eventually, an LKM for each card should be made that works directly with the
hardware. The trouble is, while most cards work on similar priciples that
are easy to figure out, there is alot of "overhead" code that has to be
written.

I'm currently working on supporting color internal video through hardware and
part of what I'm doing is generalizing so that the "overhead" code is written
once and then a driver for a type of video is simply a matter of doing a
few simple things to the hardware in a couple of C routines. Someday, this
code may be part of the LKM code and card support will come rushing in in
droves :)

But until that day you're likely out of luck!