Hello, 
    I got few replies and many thanks.Especially the reply from 
    Franzini John from HP was very helpful.She gave a very detailed reply.
    Many thanks. My thanks go to others also who send the reply.
    From Franzini John:
    ===================
The RADEON 7500 graphics card only supports one visual class at a time. You
can specify (via X server command line options) whether you want to run in
8-bit PseudoColor mode or 24-bit TrueColor mode, but you cannot display both
8-bit PseudoColor and 24-bit TrueColor windows at the same time.
By default, the RADEON card comes up in 24-bit TrueColor mode.  The PV-Wave
demo program requires an 8-bit PseudoColor visual.  The demo program
displays the error message because an 8-bit PseudoColor visual is not
available.
To allow the demo program to run, you will need to start the X server in
8-bit PseudoColor mode by editing the X server configuration file,
/var/X11/Xserver.conf, and adding the -depth and -vclass command line
options to the "args" section towards the end of the file.  For example:
    args <
                -pn
                -depth 8 -vclass PseudoColor
    >
Then log out of the session and on the login screen, select "Options/ Reset
Login Screen" to restart the X server.
To change back to 24-bit TrueColor mode, either remove those command line
options so the defaults are used, or change them to "-depth 24 -vclass
TrueColor".
The PV-Wave support web pages include a description of a similar problem on
an SGI system where the demo program is looking for an 8-bit PseudoColor
visual:
    
http://www.vni.com/tech/pvw/tips.html
        Keywords: pseudocolor truecolor
            Wrong Visual on 24-Bit SGI (Getting Pseudo, should be Direct
                        or True)
 
The Question was:
-----------------
>    Hello,
>    AlphaStation DS15
>    OS : tru64 v5.1B
>    ATI Radeon Graphic Card>>>
>    sizer -gr shows
>     1024x768
>    We have installed VNI Prduct PV-Wave on this machine.
>    When the user starts the demo program he gets the following error:
>    "Unsupported X Windows Visual Class: PseudoColor, Depth=8."
>    How can I get rid of this error?
>    Regards,
>    Kumar
  My question follows below:
  ==========================
Received on Tue Apr 27 2004 - 05:55:07 NZST