VMD-L Mailing List

From: Axel Kohlmeyer (akohlmey_at_cmm.chem.upenn.edu)
Date: Fri Sep 19 2008 - 06:05:42 CDT

On Fri, 19 Sep 2008, shiladitya_at_jncasr.ac.in wrote:

SS> Hello friends,
SS>
SS> we recently installed vmd 1.8.6 in a workstation.
SS>
SS> typing vmd on the terminal , successfully launches the vmd windows.
SS>
SS> but then the machine gets hung up. neither mouse nor keyboard works . the
SS> only way to get back to normal condition seems to reboot.

that sounds a lot like a buggy or misconfigured graphics driver.

please see the linux release notes on the VMD homepage for a list
of known problems and workarounds. for starters, i would suggest to
try launching VMD with: env VMDSIMPLEGRAPHICS=1 vmd
that will turn off most of the advanced features in the OpenGL support.
 
SS> i tried to ssh login from a remote machine and killed the process vmd.
SS> even after the process got killed , the vmd windows remain (hung up state)
SS>
SS> it is a 64 bit machine.
SS> the os is redhat enterprise linux (2.6.9-22.ELsmp).

also please make sure that you have the latest updates for your
OS and the graphics driver. sometime, updates of the OS overwrite
parts of the graphics driver and a re-install of the driver is
required.

cheers,
   axel.

SS>
SS> the following is the startup message in the vmd-console :
SS>
SS> Info) Please include this reference in published work using VMD:
SS> Info) Humphrey, W., Dalke, A. and Schulten, K., `VMD - Visual
SS> Info) Molecular Dynamics', J. Molec. Graphics 1996, 14.1, 33-38. Info)
SS> ------------------------------------------------------------- Info)
SS> Multithreading available, 8 CPUs detected.
SS> Info) Free system memory: 7750MB (97%)
SS> Info) OpenGL renderer: Quadro FX 1700/PCI/SSE2
SS> Info) Features: STENCIL MSAA(4) MDE CVA MTX NPOT PP PS GLSL(OVF) Info)
SS> Full GLSL rendering mode is available.
SS> Info) Textures: 2-D (8192x8192), 3-D (2048x2048x2048), Multitexture (4)
SS> vmd >
SS>
SS>
SS> please help.
SS>
SS> regards,
SS>
SS> shiladitya sengupta
SS> TSU
SS> JNCASR
SS>
SS>
SS>
SS>
SS> 

-- 
=======================================================================
Axel Kohlmeyer   akohlmey_at_cmm.chem.upenn.edu   http://www.cmm.upenn.edu
   Center for Molecular Modeling   --   University of Pennsylvania
Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323
tel: 1-215-898-1582,  fax: 1-215-573-6233,  office-tel: 1-215-898-5425
=======================================================================
If you make something idiot-proof, the universe creates a better idiot.