VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Dec 06 2016 - 22:49:00 CST

That's a useful result. I think that given this result, you almost
certainly have a video driver that is buggy. My suggestion would be
to see if there are new or updated driver versions available for your
machines. If this is a laptop, that is probably the most viable route
to getting the issue resolved. If you have a desktop machine, another
option would be to add in a GPU rather than using the on-chip graphics
of the CPU. There are some other possibilities using software rasterization,
but since you only have a 4-core CPU, I would suggest that you
pursue the other approaches first.

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Tue, Dec 06, 2016 at 11:39:31PM -0500, spandu K wrote:
> Thanks for the mail,
> Glxgears work perfectly.
> Then I usedA A export VMDSIMPLEGRAPHICS=1
> Now, VMD also works.
> Thanks
> Spandana
> On Tue, Dec 6, 2016 at 11:11 PM, John Stone <[1]johns_at_ks.uiuc.edu> wrote:
>
> Hi,
> A Most likely there are problems with your OpenGL drivers, based
> on what I see in the startup messages below.A 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?A 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.A 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.A If you use bash, you would set this environment
> variable like this:
> A export VMDSIMPLEGRAPHICS=1
>
> If you use tcsh, you would do it like this:
> A setenv VMDSIMPLEGRAPHICS 1
>
> Cheers,
> A John Stone
> A [2]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) [3]http://www.ks.uiuc.edu/Research/vmd/
> > Info) Email questions and bug reports to [4]vmd_at_ks.uiuc.edu
> > Info) Please include this reference in published work using VMD:
> > Info)A A Humphrey, W., Dalke, A. and Schulten, K., `VMD - Visual
> > Info)A A 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.A Most OpenGL drivers
> > Warning) disable stereoscopic display when 'Composite' is enabled.
> > Info) OpenGL renderer: Mesa DRI Intel(R) Broadwell
> > Info)A A Features: STENCIL MSAA(4) MDE CVA MTX NPOT PP PS GLSL(OVFS)
> > Info)A A Full GLSL rendering mode is available.
> > Info)A A 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
> [5]http://www.ks.uiuc.edu/~johns/A A A A A A Phone: [6]217-244-3349
> [7]http://www.ks.uiuc.edu/Research/vmd/
>
> References
>
> Visible links
> 1. mailto:johns_at_ks.uiuc.edu
> 2. mailto:vmd_at_ks.uiuc.edu
> 3. http://www.ks.uiuc.edu/Research/vmd/
> 4. mailto:vmd_at_ks.uiuc.edu
> 5. http://www.ks.uiuc.edu/~johns/
> 6. tel:217-244-3349
> 7. http://www.ks.uiuc.edu/Research/vmd/ 

-- 
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/