VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Sun Nov 18 2012 - 22:25:27 CST

Hi,
  Does VMD print any warnings on this machine when it starts?
(e.g. compiz compositing manager)
It is quite possible you're hitting a driver bug in the latest
driver version.

Can you send the startup messages VMD prints on this machine?
I'm wondering if your OpenGL installation got damaged during
the sequence of upgrades you ran.

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Fri, Nov 16, 2012 at 08:44:51PM +0100, Pietro Amodeo wrote:
> Hi,
>
> after a kernel upgrade (to 3.6.6-1) on a Fedora 16 laptop (Intel Core
> Duo, 4GB RAM, NVidia 8400M GS) we had to upgrade NVIDIA driver from
> 295.59 to 304.64. The result is a terribly slow VMD 1.9.1 (practically
> unusable) displaying <8 fps with no molecule loaded!!!. Things slightly
> improve with beta driver 310.14 (<=15 fps no mol loaded), but usability
> is still rather poor (not fluid).
>
> Previously, witn NVidia 295.XX drivers, VMD 1.9.1 worked flawlessly on
> the same laptop. However, with 304.64 or 314.14 all other tested OpenGL
> programs works correctly and no error message is issued in Xorg.log or
> when starting VMD.
>
> Moreover, VMD 1.9.1 works flawlessly on a Intel i7+NVidia Gt230M laptop
> with the same FC16+kernel 3.6.6-1 +driver 304.64 combination.
>
>
> Thanks in advance for any hint/help.
>
> Pietro
> On this laptop
> --
> Dr. Pietro Amodeo, PhD
> Primo Ricercatore CNR
> Istituto di Chimica Biomolecolare del CNR
> Comprensorio "A. Olivetti", Edificio 70
> Via Campi Flegrei 34
> I-80078 Pozzuoli (Napoli) - Italy
> Phone +39-0818675072
> Fax +39-0818041770
> Email pamodeo_at_icmib.na.cnr.it 

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