Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!agate!fugitive!izumi From: izumi@fugitive.berkeley.edu (Izumi Ohzawa) Newsgroups: comp.sys.next Subject: Re: NeXTdimension board - multiple heads on a cube? Message-ID: <1990Sep24.084343.3794@agate.berkeley.edu> Date: 24 Sep 90 08:43:43 GMT References: <276@heaven.woodside.ca.us> <550@wjh12.harvard.edu> Sender: usenet@agate.berkeley.edu (USENET Administrator) Distribution: comp Organization: University of California Lines: 30 In article <550@wjh12.harvard.edu> clp@wjh12.UUCP (Charles L. Perkins) writes: >I asked someone "high up" in the NeXT hardware group, and they mentioned > that you can have 4 (four!) display, a MegaPixel B&W and 3 NeXTdimension > boards. > >The Preference Panel allows monitors in a 3 x 3 array, so four is no problem. Can these NeXTdimensions boards synchronize H and V scans among themselves? (presumably by having one board serving as H & V sync master and others as slaves). How about LUTs (Color lookup tables)? Do they exists on NeXTdimension boards? Someone mentioned that DPS will not directly allow manipulations of LUTs, but whether the LUTs hardware exists or not is another question. Is there a technical documentation which describe these things? Also, someone was talking about the possility of using 3-rd party Color Monitors instead of NeXT Color Megapixel display. I suppose you could you a standard 64kHz (H) RGB monitors, but you will probably have to retune the V-hold because the NeXT displays operate at 68Hz frame rate, while most of other monitors are tuned for 60Hz frame rate. It's an easy adjustment, but in most cases, you will have to open the case of the monitors. Izumi Ohzawa, izumi@violet.berkeley.edu