Originally posted by: dkcc

Hi,
I am looking for a full 24 bit graphics adapter.
I have been told that the GXT145P can be configured in three
different ways. Two of the way causes it to function as a 8 bit
graphics adapter and one way causes it to function as a 24 bit
graphics adapter. If my understanding is correct. In 8 bit mode
this means that out of a palate of 16M colors only 256 can be
displayed at one time and in 24bit mode all 16 million colors
can be displayed at one time.
Question: Does anyone know just how AIX / CDE configures the
GXT145P adapter? That is; does it initialize the adapter
to function in 8 bit or 24 bit mode?
(I have had problems in the past where application would not
initialize because there were not enough colors available.
That is; the color map was fully allocated. This made
my task very difficult to accomplish. Had to keep starting
and stoping one or more applications!)

I would appreciate any assistance!

Bye,
Dwight

Originally posted by: dkcc

Hi,
I have found some information about graphics adapters and
color support.
A person in the AIX/Graphics support group told me that the
number of colors and the size of the color descriptor is controlled
by the -cc and -d parameter in the /usr/lpp/X11/defaults/xserverre file.
An explanation of what these parameters mean can be found in
the command reference manual entry for the command "X".
By changing the line EXTENSIONS="" in the xserverre file to
EXTENSIONS=" -cc 4 -d 24 " (spaces are relevant) I am now in
full color mode and using a 24 bit color descriptor.

NOTE: If firefox has been installed the -cc value might
already have been inserted into the EXTENSIONS definition.

Bye,
Dwight