Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!rutgers!sri-spam!ames!ucbcad!ucbvax!YKTVMV.BITNET!DAN From: DAN@YKTVMV.BITNET Newsgroups: comp.windows.x Subject: Correction of some miss statements about the IBM RT/PC Message-ID: <8712071729.AA08561@ATHENA.MIT.EDU> Date: Mon, 7-Dec-87 12:20:26 EST Article-I.D.: ATHENA.8712071729.AA08561 Posted: Mon Dec 7 12:20:26 1987 Date-Received: Sat, 12-Dec-87 14:37:53 EST Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 43 >We've been told by a person who used X10R4 that the driver for the color >display of the PC/RT only let you use 2 of the 16 available colors at a >time, i.e. you could have a fore & background color. > >Does anyone know of an X10R4 server for color PC/RTs which lets you use all >the colors at once? > >dirk grunwald >univ. of illinois Reply: The IBM ACIS implementation of X 10.4 (runs under 4.2 BSD) is often confused with the IBM RT/PC X Windows 1.1 implementation of X 10.4 (runs under AIX). The ACIS version supports only a single level, addressable bit plane. For the 6153 and 6155 displays, this means 2 out of 2 colors (black & white) while for the 6154 display, this means 2 out of 16 colors. There is no ACIS support for the megapel display. IBM RT/PC X Windows 1.1 supports full color, 16 out of 64 for the 6154 display and 256 out of 4096 for the megapel display. --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- >>IBM recently announced that X-11 on the RT under AIX will be available >>in September of 1988. So I doubt that you'll do anything with whathever >>is in the SysV/RT subdirectory. >> >Read the announcement carefully - it doesn't say they will support >X11, just that they will support some of the functionality. Reply: You are reading too much into words constructed or approved by lawyers. There are many "... some severs may implement ..." phrases in the MIT documentation that need to be addressed specifically for the RT. Without having the eventual implementation in hand it is hard to say exactly what will be delivered. Almost certainly the full base and hopefully some of the options. In general IBM products aim for significant added functionality. Walt Daniels IBM Research