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>>>>> On Sun, 13 Jan 2008 10:46:26 +0530, "Sahil Dave" <[EMAIL PROTECTED]> said:

      [snipped]

    Sahil> 2. as root
    Sahil> # amdcccle
    Sahil> Session management error: Authentication Rejected, reason : None of 
the
    Sahil> authentication protocols specified are supported and host-based
    Sahil> authentication failed

It seems, you need to grant 'root' access to your X session, you can
try doing 'xhost +' (which disables X server Access Control, probably
you need to RTFM of xhost(1)) in your normal user, before trying to
executing anything in 'root' user OR you need to use 'pam_xauth' in
your PAM configuration.

Quoting from pam_xauth(8):

       Without pam_xauth, when xauth is enabled and a user uses the su(1)
       command to assume another user’s priviledges, that user is no
       longer able to access the original user’s X display 
       because the new user does not have the key needed to access the
       display. pam_xauth solves the problem by forwarding the key
       from the user running su (the source user) to the user whose
       identity the source user is assuming (the target user) when the
       session is created, and destroying the key when the session is
       torn down. 

HTH
- -- 
Ashish Shukla आशीष शुक्ल                      http://wahjava.wordpress.com/
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