Screen Saver Resolution

I am using sun solaris machine i have given the specs of that machine given below

Name of athe Platform : SUNW,Ultra-5_10
Machiene hardware :sun4u
Processor Type :sparc
Operating system : solaris 10
Monitory TYpe : SAMSUNG Sync Master 920NW

How to change the screen resolution.When i try to change the screen resolution it has been showing error message i have given the error message below.

ERROR MESSAGE:The XServer does not support the XRandR extension. Runtime resolution changes to the display size are not available.

I have tried to change the resolution through single user mode with the help of kdmconfig command when ever i typed this (kdmconfig) command it has been showing command not found how to change the secreen resolution.

I have one more question

Is it possible to open the SMC for normal user. If he login as root in command mode.

Thanks.

Did you try any of these methods?
run kdmconfig:

# /usr/openwin/bin/kdmconfig

# /usr/openwin/sbin/kdmconfig

Icd to the directory that kdmconfig is reported to be in and try to run it.

# cd /usr/openwin/sbin/

issue command:

# ./kdmconfig

Sir,
Thanks for fast reply,

But i had followed your instructions what you have given above i was able to go upto
# /usr/openwin/bin/ after that it was not showing kdmconfig command
# /usr/openwin/ it was not showing kdmconfig command i have tried to change the resolution through single user mode with the help of kdmconfig command whenever i had given the kdmconfig command it was showing command not found how to change the resolution is there any solution to come out from this problem if it is there it is help ful to me.

Thanks.