VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue May 11 2004 - 14:19:15 CDT

Olga,
  The source of your problem is indicated clearly by the VMD
startup messages:
  Xlib: extension "XFree86-DRI" missing on display ":0.0".

That is the cause of your slow VMD performance. The result of that
error is that your system is using the fallback OpenGL implementation
which in this case is Mesa-based software rendering.

What do you get if you run 'glxinfo' on that system?

  John Stone
  vmd_at_ks.uiuc.edu

On Tue, May 11, 2004 at 11:21:22AM -0700, Olya Kravchenko wrote:
> Hi John! Here is what I have on the console window:
>
> Info) Multithreading available, 2 CPUs detected.
> Xlib: extension "XFree86-DRI" missing on display ":0.0".
> Info) OpenGL renderer: Mesa GLX Indirect
> Info) Features: STENCIL RN MTX TCM
> Info) Textures: 2-D (2048x2048), 3-D (0x0x0), Multitexture (6)
> vmd >
>
> Olga
>
> On Tuesday 11 May 2004 07:01 am, John Stone wrote:
> > Hi Olga,
> > Can you send me the text that VMD prints in your text console when it
> > starts up? (The OpenGL messages are what I'm specifically interested in).
> >
> > Thanks,
> > John Stone
> > vmd_at_ks.uiuc.edu
> >
> > On Mon, May 10, 2004 at 02:35:36PM -0700, Olya Kravchenko wrote:
> > > Hi everyone! I had just upgraded to 1.8.2 version of vmd and it works
> > > extremely slow, even though 1.8.1 worked perfectly well. Can someone tell
> > > me what might be a possible reason for that and what can I do to make it
> > > work faster?
> > >
> > > Thanks!
> > > Olga 

-- 
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