VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Sep 21 2004 - 09:56:16 CDT

Hi,
  Ok, I see several problems with your VMD installation.
Firstly, you're running an ancient test version of VMD that was
not even an official release from a couple years ago.

I'd recommend that you delete that version from your machine,
then download and install VMD a current copy of VMD 1.8.2 from our web site.
The old version that you're using won't work with the stereo on your
Quadro because it doesn't include the special code for the "VMDPREFERSTEREO"
feature that you need to use to get around problems with the NVidia drivers
on the older Quadro boards.

In any case, I recommend that you delete the old version of VMD,
then download the new version, read the README that comes with it
before installing, and then install it according to the directions
in the README file. (which should cure some other problems I saw
in your startup messages indicating that your existing VMD is installed
incorrectly....)

Thanks,
  John Stone
  vmd_at_ks.uiuc.edu

On Tue, Sep 21, 2004 at 04:03:25PM +0200, Sylvain EDALEINE wrote:
> I have attach to the previous mail a snapshot of the vmd startup
> message. so i join this snapshot with this mail
>
> John Stone a écrit :
>
> >Hi,
> > Just to make sure we're both on the same page, you're running
> >VMD 1.8.2 on your machine right? If not, then that changes the
> >instructions I gave before. Next, assuming that you've correctly
> >set the VMDPREFERSTEREO environment variable, send me a copy of
> >the startup messages that VMD prints when you run it. In particular
> >I want all of the OpenGL-related messages. From there I should be able
> >to give you a suggestion to fix the problem.
> >
> >Thanks,
> > John Stone
> > vmd_at_ks.uiuc.edu
> >
> >On Tue, Sep 21, 2004 at 02:59:18PM +0200, Sylvain EDALEINE wrote:
> >
> >
> >>Dear John,
> >>
> >> First I would thanks you for your answers.
> >>
> >> I have already configure the Xfree86 with the Nvidia file and I
> >>think it is well configured. Indeed as I say the stereo output works
> >>with SYBYL.
> >>I have checked the Xfree86 config file one more time, and it is ok.
> >> Then I have exported the VMDPREFERSTEREO variable but I don't see
> >>the "STEREO" feature listed in VMD startup message (see attach file)
> >>
> >>Then the selection of Display->Stereo->CrystalEyes in the software does
> >>not activate the stereo (but i think the problem is during the program
> >>launch)
> >>
> >>(NB: I use VMD on a red hat 7 Linux version with nvidia quadro 750 XGL
> >>graphic card)
> >>
> >>What is the problem?
> >>
> >>John Stone a écrit :
> >>
> >>
> >>
> >>>Hi,
> >>>That's really only the first step, and the one that's specific to the
> >>>NVidia Quadro cards. Once you've done that, when you startup VMD you
> >>>should see "STEREO" in the list of OpenGL features that VMD has found.
> >>>If not, then that indicates that you don't have your Linux XFree86
> >>>config file setup properly. The NVidia web site has a README file
> >>>documenting how you need to edit that file to enable stereo, I don't
> >>>have time to list the steps for you here. Once you've checked that
> >>>the NVidia driver is setup correctly, you've exported the VMDPREFERSTEREO
> >>>variable, and seen the "STEREO" feature listed in the VMD startup
> >>>messages, then the last step is to set the VMD display to
> >>>stereo mode by selecting Display->Stereo->CrystalEyes from the
> >>>main VMD window. That last part is all in the VMD documentation,
> >>>which I'd suggest that you read unless you're using a very typical stereo
> >>>hardware configuration.
> >>>
> >>>John Stone
> >>>vmd_at_ks.uiuc.edu
> >>>
> >>>On Mon, Sep 20, 2004 at 05:05:49PM +0200, Sylvain EDALEINE wrote:
> >>>
> >>>
> >>>
> >>>
> >>>>Hi,
> >>>>
> >>>>As you guess, I'm using VMD under LINUX. I have just run the command :
> >>>>
> >>>>export VMDPREFERSTEREO=1
> >>>>
> >>>>but it doesn't activate the Stereo display.
> >>>>
> >>>>Is it the right command?
> >>>>
> >>>>What should I do?
> >>>>
> >>>>Thanks.
> >>>>
> >>>>John Stone a écrit :
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>>Hi,
> >>>>>You didn't say what operating system you're running.
> >>>>>If you're running Linux, you'll have to set the "VMDPREFERSTEREO"
> >>>>>environment variable to "1" before running VMD, as the older
> >>>>>Quadro cards won't let you do both stereo and antialiasing at
> >>>>>the same time. If you're running Windows, you need to set the
> >>>>>video mode to enable stereo in the driver control panel, and
> >>>>>then it should work with VMD the next time you start VMD.
> >>>>>
> >>>>>John Stone
> >>>>>vmd_at_ks.uiuc.edu
> >>>>>
> >>>>>On Mon, Sep 20, 2004 at 04:38:22PM +0200, Sylvain EDALEINE wrote:
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>>I'm trying to configure a computer with VMD.This computer has a
> >>>>>>Quadro 750 XGL graphic card. I have a problem to display molecules
> >>>>>>in 3D by using the integrated stereo output. It seems that VMD
> >>>>>>does not activate this output. Indeed I'm trying to use stereo with
> >>>>>>Sybyl (tripos) and it works.
> >>>>>>
> >>>>>> Can you help me?
> >>>>>>
> >>>>>> Is VMD support Quadro 750 XGL ?
> >>>>>>
> >>>>>>I thank you to give me information as soon as possible. 

-- 
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