VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Dec 06 2016 - 22:11:30 CST

Hi,
  Most likely there are problems with your OpenGL drivers, based
on what I see in the startup messages below. The Mesa DRI drivers
have a history of various bugs, and since you appear to have a relatively
recent Intel Broadwell with on-chip graphics, it wouldn't surprise me if
the Linux drivers aren't entirely bug-free yet.

Can you run the 'glxgears' test program that comes with most
Linux systems? If your system displays 'glxgears' correctly, but not VMD,
then there are a number of things you can try to get VMD working,
assuming that you're dealing with a buggy OpenGL driver that at
least partially works. If 'glxgears' doesn't run on your machine,
then there's no way that VMD would be able to work either, since
it uses much more complex parts of OpenGL than 'glxgears' does.

If 'glxgears' works, but VMD does not, then you might try setting
the environment variable "VMDSIMPLEGRAPHICS" to 1, before you run VMD.
That will tell VMD to use a smaller subset of OpenGL, and in some cases
that will allow it to run correctly on machines that have buggy
graphics drivers. If you use bash, you would set this environment
variable like this:
  export VMDSIMPLEGRAPHICS=1

If you use tcsh, you would do it like this:
  setenv VMDSIMPLEGRAPHICS 1

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Tue, Dec 06, 2016 at 11:02:16PM -0500, spandu K wrote:
> Hello Users,
>
> I am using vmd-1.9.2 on ubuntu 14.04.
>
> I have a problem with OpenGL Display window. It is not working.
>
> Even atoms are also not visible. If I just vmd command VMD (RGB) logo is
> also not displaying.
>
> Can anyone suggest me for the same?
>
>
> **********Output of vmd is *********
>
> rlwrap: Command not found.
> Info) VMD for LINUXAMD64, version 1.9.2 (December 29, 2014)
> 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, 4 CPUs detected.
> Info) Free system memory: 1945MB (50%)
> Warning) Detected a mismatch between CUDA runtime and GPU driver
> Warning) Check to make sure that GPU drivers are up to date.
> Info) No CUDA accelerator devices available.
> Warning) Detected X11 'Composite' extension: if incorrect display occurs
> Warning) try disabling this X server option. Most OpenGL drivers
> Warning) disable stereoscopic display when 'Composite' is enabled.
> Info) OpenGL renderer: Mesa DRI Intel(R) Broadwell
> Info) Features: STENCIL MSAA(4) MDE CVA MTX NPOT PP PS GLSL(OVFS)
> Info) Full GLSL rendering mode is available.
> Info) Textures: 2-D (8192x8192), 3-D (256x256x256), Multitexture (8)
> Info) Dynamically loaded 2 plugins in directory:
> Info) /usr/local/lib/vmd/plugins/LINUXAMD64/molfile
> vmd >
> ******
>
>
> Thanks
> Spandana 

-- 
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/