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Old 07-22-10, 07:41 AM   #1
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Join Date: Jul 2010
Posts: 4
Default vmd 1.8.7 crashed by TrueColor visual in ubuntu 10.04

My laptop have a Quadro NVS 140M graphic card, and running with ubuntu 10.04. I have installed the latest nvidia drive from ubuntu ppa like:

$ aptitude show nvidia-current
Package: nvidia-current
State: installed
Automatically installed: no
Version: 256.35-0ubuntu2~xup2

vmd 1.8.7 binary is downloaded at vmd offical website. The package was chosen as
LINUX OpenGL, CUDA (Linux (32-bit, RHEL4 or later) with CUDA)

I am sure installed vmd 1.8.7 correctly since there is even no warning from make install command. However, when I run vmd command, it gives following errors:

$ vmd
Info) VMD for LINUX, version 1.8.7 (August 1, 2009)
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, 2 CPUs detected.
Info) Free system memory: 2520MB (83%)
Info) Detected 1 available CUDA accelerator:
Info) [0] Quadro NVS 140M 2 SM_1.1 @ 0.80 GHz, 127MB RAM, KTO, OIO
Info) Creating CUDA device pool and initializing hardware...
Warning) Detected X11 'Composite' extension: if incorrect display occurs
Warning) try disabling this optional X server feature.
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 ...
Info) VMD for LINUX, version 1.8.7 (August 1, 2009)
Info) Unable to create OpenGL window.

and vmd crashed.

I have asked vmd supporter John Stone. He recommend me post this error on nvidia forum here.

Any suggestions is appreciate.

Best regards.

Sai Duan
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