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