From: Axel Kohlmeyer (
Date: Sat Sep 05 2009 - 14:33:34 CDT

On Fri, 2009-09-04 at 17:52 -0500, Bishop, Thomas C wrote:


please do the following:

- update to the release version of vmd-1.8.7
  nobody will take bug reports of obsolete beta versions serious.

- provide details about which nvidia driver is installed.

> Vmd gives me this message after install 11.1 and then dies.
> (using yast2 w/ for the nvidia
> drivers/configuration as a check glx gears runs)

glxgears requires only basic functionality.

> ade 108% vmd
> Info) VMD for LINUXAMD64, version 1.8.7beta5 (June 1, 2009)
> Info)
> Info) Email questions and bug reports to
> 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: 7437MB (94%)
> Info) No CUDA accelerator devices available.
> ERROR) A TrueColor visual is required, but not available.
> ERROR) The X server is not capable of displaying double-buffered,
> ERROR) RGB images with a Z buffer. Exiting ...

this looks as if you have a broken or inconsistent GL driver/library.
have you rebooted after installing the driver?

please make sure that you have configured your display for
at least 15 bits per pixel color depth (and not 8bpp PseudoColor).

xdpyinfo or glxinfo will provide this information,
or you can check it by reading through /var/log/Xorg.0.log.

> Info) VMD for LINUXAMD64, version 1.8.7beta5 (June 1, 2009)
> Info) Unable to create OpenGL window.
> the /var/log/messages has this to say
> Sep 4 17:51:16 ade kernel: vmd_LINUXAMD64[13051] general protection
> ip:5b5623 sp:7fff2b07a800 error:0 in vmd_LINUXAMD64[400000+6d0000]
> Sep 4 17:51:47 ade kernel: vmd_LINUXAMD64[13066] general protection
> ip:5b5623 sp:7fff90e1fda0 error:0 in vmd_LINUXAMD64[400000+6d0000]
> Sep 4 17:53:14 ade kernel: vmd_LINUXAMD64[13136] general protection
> ip:5b5623 sp:7fff7f3b3400 error:0 in vmd_LINUXAMD64[400000+6d0000]

that can have all kinds of reasons. with the few data points that
you provide it looks like you have a misconfigured machine.


Dr. Axel Kohlmeyer 
Research Associate Professor
Institute for Computational Molecular Science
College of Science and Technology
Temple University, Philadelphia PA, USA.