VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Mon Dec 07 2009 - 21:45:44 CST

Hi,
  You need to install the proper NVIDIA drivers for your
machine. The OpenGL that's currently active is a software
rasterizer, and that's definitely _not_ what you want to be using...
You can get the latest NVIDIA drivers for Linux from their web site,
and they are quite easy to install. Once you get the proper drivers
installed, your problems should go away. I'm a little disappointed to
see that the software rasterizer that Fedora is including by default is
so buggy, but I suppose that's the nature of the beast. You won't be using
the software rasterizer once you get the correct drivers installed, so
you should be fine.

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Mon, Dec 07, 2009 at 07:25:11PM -0800, Rob wrote:
>
> Hi,
>
> I have Fedora 12 X86_64 64 bits Linux and I installed
> vmd-1.8.7.bin.LINUXAMD64.opengl.tar.gz.
>
> When I start vmd, I get this:
>
> Info) VMD for LINUXAMD64, version 1.8.7 (August 1, 2009)
> Info) http://www.ks.uiuc.edu/Research/vmd/
> Info) Email questions and bug reports to vmd_at_ks.uiuc.edu
> Info) Please include this reference in published work using VMD:
> Info) Humphrey, W., Dalke, A. and Schulten, K., `VMD - Visual
> Info) Molecular Dynamics', J. Molec. Graphics 1996, 14.1, 33-38.
> Info) -------------------------------------------------------------
> Info) Multithreading available, 8 CPUs detected.
> Info) Free system memory: 5145MB (86%)
> Info) No CUDA accelerator devices available.
> Warning) Detected X11 'Composite' extension: if incorrect display occurs
> Warning) try disabling this optional X server feature.
> Info) OpenGL renderer: Software Rasterizer
> Info) Features: STENCIL MDE CVA MTX NPOT PP PS GLSL(OVF)
> Info) Full GLSL rendering mode is available.
> Info) Textures: 2-D (4096x4096), 3-D (256x256x256), Multitexture (8)
> Segmentation fault
>
>
> In my /var/log/messages I then get this line:
>
> kernel: vmd_LINUXAMD64[8493]: segfault at 8 ip 0000003278c528b6
> sp 00007fffe05d1b00 error 4 in libX11.so.6.3.0[3278c00000+139000]
>
>
> My graphics card is: nVidia Corporation GeForce 8600 GTS (rev a1)
>
> Any idea what's the problem here?
>
> Is it a bug in VMD, in Xorg, or in other parts of my Linux 64 bits?
>
> Is there a way to work around this using the configure.options when installing vmd?
>
> Thank you!
>
> Rob.
>
>
> 

-- 
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