Hello Malcom
I am running a video mode with more than 256 colors. I used to have
color problems whenever I opened GRASS monitors and e.g. Netscape. There
would notbe enough colors available. I got the advice to upgrade to 2 MB
of DRAM, which I now have and I am running at depth 16. Is it not possible
to run more than 256 colors? Should I change some settings?? Thanks for
such a prompt response!! Curious whether I should not have gone for
the upgrade.
Luc
On Mon, 21 Oct 1996, Luc Boerboom wrote:
Hello Malcom
I am running a video mode with more than 256 colors. I used to have
color problems whenever I opened GRASS monitors and e.g. Netscape. There
would notbe enough colors available. I got the advice to upgrade to 2 MB
of DRAM, which I now have and I am running at depth 16. Is it not possible
to run more than 256 colors? Should I change some settings?? Thanks for
such a prompt response!! Curious whether I should not have gone for
the upgrade.Luc
Hi, Luc
Nope, you can't run more than 256 colors with the standard GRASS xdriver.
However, some kind soul (I can't recall who!) wrote a version of xdriver
that will display a GRASS 256-color monitor window on a 24-bit display. I
can arrange for you to ftp the source code from me if you'd like; drop me
a note directly (if anyone else needs this, let me know too). I've used
it quite successfully on both Sun 24-bit displays, and 24-bit xterm
emulation software (Hummingbird's eXceedNT, Intergraph's eXalt).
Hopefully your upgrade won't be wasted! (Just don't expect any benefits
for GRASS 
)
Regards,
--
Malcolm D. Williamson - GIS Specialist E-mail: malcolm@cast.uark.edu
Center for Advanced Spatial Technologies Telephone: (501) 575-6159
Ozark Rm. 12 Fax: (501) 575-5218
University of Arkansas
Fayetteville, AR 72701
As Malcom said, there is an XDRIVER24 available. There is a binary
available for Linux on Moon, and I run it here occasionally.
It isn't entirely perfect, but it works. Which is what I wanted.
To get XFree86 to run at 8bpp (256 colors, pseudocolor, palette color,
whatever else you want to call it) you need to specify the -8bpp in the
command line to X, which is found in the xinit script in
/usr/X11R6/lib/X11/xinit (I think.) Another approach is to modify
/etc/XF86Config to use 8bpp by default by ( I seem to recall) putting the
8bpp section before the 16bpp section at the bottom of the file.
I played around to get all this to work, but it is all in the man pages
(somewhere) for Linux. I wish you luck finding it. I didn't enjoy it, but
my system now does what I want it to.
Angus.
On Mon, 21 Oct 1996, Luc Boerboom wrote:
Hello Malcom
I am running a video mode with more than 256 colors. I used to have
color problems whenever I opened GRASS monitors and e.g. Netscape. There
would notbe enough colors available. I got the advice to upgrade to 2 MB
of DRAM, which I now have and I am running at depth 16. Is it not possible
to run more than 256 colors? Should I change some settings?? Thanks for
such a prompt response!! Curious whether I should not have gone for
the upgrade.Luc