JPL's Xsun multi-screen patches. Allows, on VME systems, up to three cgtwos. On S-bus systems, up to three cgthrees, If you have the two-slot cgsix, you may add a cgthree. If you use a VME to S-bus adapter, any combination of the above, to a total of three frame buffers in a VME chassis. These patches have been tested in the following configurations: 1..3 cgtwos in a VME chassis 1..3 cgthrees in an S-bus 1..3 cgsixes in an S-bus 1 cgfour in 4/110 While the Sun 386i uses a cgthree, there are no additional slots to put additional frame buffers. To apply these patches, change to your X11 source tree, then cd to server/ddx/sun and patch -p0 < patchfile. In order for these patches to work, on VME-bus systems you need special object files for your kernel. Ask your Sun support people to provide you with the cg*.o files for your configuration, then rebuild your kernel with the supplied files. If you have second and/or third frame buffers from Sun Special Engineering, you should already have or + know about these special object files. On S-bus systems, you need only to install the new frame buffers and the S-bus kernel will take care of the rest. In addition to adding multi-screen support, these patches fix a bug in the virtual mono-screen support for the cgfour, a bug in -mono, and a bug when compiling the server under SunOS 4.1. Feel free to contact me with any questions or comments. Kaleb Keithley kaleb@thyme.jpl.nasa.gov