From: John Stone (
Date: Tue Jul 05 2011 - 14:01:24 CDT

  If you're having trouble with the 275 series driver, I would
recommend installing the driver version that was posted with CUDA 4.0,
which is version 270.41.19. We are using 270.41.19 on all of the machines
here and we don't have any problems currently.

  John Stone

On Mon, Jul 04, 2011 at 09:19:02AM +0200, Francesco Pietra wrote:
> Minor problems suddenly arising with VMD-cuda.
> *************
> OS: Debian amd64 wheezy
> GNOME 2-30
> nvidia driver 275.09.07.-1 (compiled within the OS)
> VMD 1.9 CUDA
> Gigabyte GA 890FXAUD5
> AMD PhenomII 1075T
> 2 x GTX 470
> **************
> The first time VMD is started from a gnome terminal window, it works
> nicely. If the terminal window is closed, then another one opened, and
> VMD commanded, the same phrase "creating
> CUDA..." appears, while VMD does not start, and the computer hangs.
> **************
> That there is something wrong with my system is also indicated by
> having to launch NAMD-CUDA from within a gnome terminal window (after
> command "nvidia-smi -L" to activate the two GTX 470). Whereby NAMD
> works perfectly.This procedure does not work from the linux prompt,
> without X-server and gnome. It was not so initially, a few days ago,
> when NAMD could be launched without X-server/gnome, after 'nvidia-smi
> -L". In between the two periods, I had carried out a Debian upgrading
> from nvidia driver 270.41.19-1 to 275.09.07-1, but I have no firm
> grounds to attribute present issues to such upgrading.
> I wonder whether there is a command to 'stop' the GTX 470, just the
> reverse of 'nvidia-smi -L' that should (or 'could', in my case) be
> issued at the end of a VMD or NAMD session.
> Thanks
> francesco pietra

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