XDRIVER24 (was: Calcomp Drawing Board III)

[atlas.il.nrcs.usda.gov!gomlra3!ohler]

 Steve --

  I went through this just recently.  As Angus suggested, you
 can use the XDRIVER24 for 24 bit graphics; however that will 
 not allow you to switch to float colormode. A second solution
 is to switch X from default of 24 to 8 bit mode when starting
 the window manager. I am using openwin, so my .login file uses
 the following line to start openwin:

 /usr/openwin/bin/openwin -dev /dev/fb defdepth 8

 
 Other applications (notably GRASSLAND) may also malfunction
 under 24 bit graphics and benefit from the switch to 8bit.
 Note that if you are also using Arc/Info the documentation 
 says it requires 24 bit graphics on sol2.5.

Eric Ohler
USDA-NRCS


>Also we are unable to start a Grass monitor from an Xserver which is
>running CDE as the window manager.  If I issue the following command
>once grass has started: d.mon start=gisx1 I get the following error:
>
>X Error of failed request:  BadMatch (invalid parameter attributes)
>  Major opcode of failed request:  78 (X_CreateColormap)
>  Serial number of failed request:  267
>  Current serial number in output stream:  268
>
>Our monitorcap file has entries like this:
>
> gisx1:driver/XDRIVER:X-term display (gisx1): \
>      /opt/grasstest/dev/fifo.1a /opt/grasstest/dev/fifo.1b \
>      ::any terminal
>
>and these work fine for Xterminals but not Xservers.
>
>Any comments would be appreciated.
>
>Steve Moore - Software Coordinator
>              Miami University, Oxford, Ohio
>              (513) 529-1452