From: Cosseddu, Salvatore (
Date: Tue Mar 11 2014 - 10:00:30 CDT

Hi Simon,

have you ever tried to run vmd on the remote machine without passing through ssh and X11 forwarding? Does it work?

Anyway "ssh -X" does not look like the best option to use VMD remotly. It can be very slow... A NX server/client might be a best choice. Check something like

Best wishes
From: <> on behalf of Simon Etter <>
Sent: 11 March 2014 12:31
Subject: vmd-l: Segmentation fault


I have a remote compute server on which I would like to run VMD and stream the GUI to my local screen. Every time I start the application, it
crashes with the following error report:

Info) VMD for LINUXAMD64, version 1.9.1 (February 1, 2012)
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, 48 CPUs detected.
Info) Free system memory: 102376MB (79%)
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 optional X server feature.
XRequest.154: BadAlloc (insufficient resources for operation) 0x17
XRequest.154: GLXBadContext 0x3800001
Segmentation fault

I heard from other users of the same server that they did not have any problems, so I assume this must be an issue on my local machine.

Any hint on how I could fix this?


Further points:

     I connect to the server using ssh -X.
     Opening remote xterm and gnuplot windows works.
     Local X windows version: 1.13.0