It works fine under HPUX with both screens, but under NetBSD, it puts the second screen on the same video card (like a virtual desktop). It will do this with either /dev/grf0 or /dev/grf1 showing up on the appropriate monitor depending on which is first in the X0screens file. It also knows enough to crash sensibly if I specify /dev/grf2 when I don't have a third video card.
Mike Hibler postulated the following:
>[...] maybe some incorrect info is being returned in the GRFINFO
>(or whatever it is called) ioctl for grf1. Or there is some HP-UX call
>that is not emulated correctly (or at all).
I'd greatly appreciate if someone could mail me with suggestions on how to get this to work.