VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Mon Dec 19 2005 - 16:54:21 CST

Hi,
  Before running VMD as root, make sure you're able to run 'xterm'.
It sounds like you forgot to use 'xhost' to enable the root user to
open a window on your machine (the authentication error). If the VMD windows
flash and exit first thing, you'll want to do this:
  source /usr/local/bin/vmd (will immediately exit as before)
  /usr/local/lib/vmd/vmd_LINUXAMD64

When VMD exits the second time, note the error message that's printed.
You will also want to check the output of 'ldd':
  ldd /usr/local/lib/vmd/vmd_LINUXAMD64

What graphics drivers are you using on your machine?

  John Stone
  vmd_at_ks.uiuc.edu

On Mon, Dec 19, 2005 at 04:36:55PM -0600, Cheng, Kelvin wrote:
> I installed vmd-1.8.3 (AMD64) on my AMD v64 bit machine running Fedora Core 4. When I entered
> VMD from root, I got the following error message
>
> Warning: Tried to connect to session manager, Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed
>
> When I ran it under a user, the X-windows flashed and did not show anything.
>
> Please help. Thanks a lot.
>
> 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349
  WWW: http://www.ks.uiuc.edu/~johns/      Fax: 217-244-6078