VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Jan 24 2014 - 13:55:35 CST

Hi,
  Which exact NVIDIA driver are you running? Most likely there is a
an OpenGL bug with the driver version you are using. If you can tell
me what driver version you're using, we can dig into further details
from there. One thing to look at is to see if you get any "NVRM"
messages in your system logs, e.g.:
  dmesg | grep -i nv

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Fri, Jan 24, 2014 at 05:09:36PM +0100, Damiano Buratto wrote:
> Hi all,
>
> I used vmd without any problem on a pc with 4 NVDIA Tesla accelerators (one of
> which is used for display), CUDA 4.0 driver and Scientific Linux 6.4 system.
> I have recently installed CUDA 5.5 driver and now when I start vmd,
> I get the following message:
>
> Info) VMD for LINUXAMD64, version 1.9.1 (February 1, 2012)
> 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, 16 CPUs detected.
> Info) Free system memory: 43332MB (89%)
> Info) Creating CUDA device pool and initializing hardware...
> Info) Detected 4 available CUDA accelerators:
> Info) [0] Tesla C2075 14 SM_2.0 @ 1.15 GHz, 5.2GB RAM, KTO, OIO, ZCP
> Info) [1] Tesla C2070 14 SM_2.0 @ 1.15 GHz, 5.2GB RAM, OIO, ZCP
> Info) [2] Tesla C2070 14 SM_2.0 @ 1.15 GHz, 5.2GB RAM, OIO, ZCP
> Info) [3] Tesla C2070 14 SM_2.0 @ 1.15 GHz, 5.2GB RAM, OIO, ZCP
> Warning) Detected X11 'Composite' extension: if incorrect display occurs
> Warning) try disabling this optional X server feature.
>
> and instantly the system log me out.
>
> I also tried to set environment variables VMDNOGPU or
> VMDCUDANODISPLAYGPUS but this do not fix the problem.
>
> Can anybody help me?
>
> Thanks in advance for your help,
> Damiano 

-- 
NIH Center 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/