I just scanned the supported hardware list and didn't find any section 
on which display cards worked.  It was a quick scan so I could easily 
have missed something.

I think a list of cards that are known to work and/or known not to 
work would be useful.

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I have a Miata with:
  tga0 at pci0 slot 11 
  tga0: depth 8, map size 2MB, 1024x768 
  tga0: ZLXp2-E, Revision: 34 
(That printout is from Tru64 Unix)

NetBSD 1.4 crashes early in the startup when I boot from the install 
floppy.  I'll get more info if anybody wants it - but mostly all 
I've seen is that the brown stuff has hit the fan. 

If a PR will help anybody keep track of things I'll send one in.

I don't expect anybody to make that card work.  It would be nice 
if it didn't crash.

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.../Ports/alpha/models.html doesn't say anything about the Miatas. 

If anybody is working on that page, I think it is important to understand 
that there are at least 2 significant versions of the "Miata" (Personal 
Workstation) machines - "a" vs "au".  I think the "a" systems come 
with IDE disks.  (I haven't worked with one, but I think I saw a 
recent message indicating that it worked.)  The "au" systems have 
SCSI disks. 

Ports/alpha/index.html says that the "au" systems are supported in 
1.4.  It doesn't mention the "a" systems.