VMD-L Mailing List

From: Shalabh Maroo (shalabh.maroo_at_gmail.com)
Date: Fri Mar 09 2012 - 10:50:14 CST

Thank you everyone for your help. It was the driver like you all suggested,
I reinstalled the NVIDIA driver and things are back to normal!

-Shalabh

On Thu, Mar 8, 2012 at 10:29 PM, John Stone <johns_at_ks.uiuc.edu> wrote:

> Hi,
> I concur with Axel's suggestions. The fact that the X server is
> reporting an error when the OpenGL driver is queried and it the OpenGL
> query routines are reporting"ErrorUnknown" for the glGetString(GL_RENDERER)
> call, tells me that your OpenGL driver installation is seriously broken.
>
> This output message from the VMD OpenGL renderer query says it all:
> Info) OpenGL renderer: ErrorUnknown
>
> All VMD does to get that string is call a fundamental OpenGL function:
> const char *string = glGetString(GL_RENDERER);
>
> For that to fail, the OpenGL driver must be completely inoperable.
> As Axel has already suggested, I would bet that the X server updates
> overwrote the NVIDIA OpenGL driver shared library files
> you had previously installed on your system with new non-NVIDIA driver
> files from RedHat, thereby breaking everything.
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Thu, Mar 08, 2012 at 10:06:08PM -0500, Axel Kohlmeyer wrote:
> > On Thu, Mar 8, 2012 at 6:53 PM, Shalabh Maroo <shalabh.maroo_at_gmail.com>
> wrote:
> > > Hi,
> > >
> > > I got a new Dell Workstation with Red Hat 6.2. I installed VMD and it
> was
> > > running fantastic as always. But then I had the updates from Red Hat
> and
> > > installed them. Now, the VMD display does not show up properly. I get
> the
> > > following:
> > >
> > > Info) Creating CUDA device pool and initializing hardware...
> > > [New Thread 0x7fffef581700 (LWP 9549)]
> > > Info) Detected 1 available CUDA accelerator:
> > > Info) [0] Quadro 2000 4 SM_2.1 @ 1.25 GHz, 1.0GB RAM, KTO,
> OIO, ZCP
> > > Warning) Detected X11 'Composite' extension: if incorrect display
> occurs
> > > Warning) try disabling this optional X server feature.
> > > XRequest.137: BadWindow (invalid Window parameter) 0x4200091
> > > Info) OpenGL renderer: ErrorUnknown
> > > Info) Features: STENCIL
> > > Info) GLSL rendering mode is NOT available.
> > > Missing separate debuginfo for /usr/local/lib/vmd/libexpat.so.0
> > > Info) Dynamically loaded 2 plugins in directory:
> > > Info) /usr/local/lib/vmd/plugins/LINUXAMD64/molfile
> > > vmd >
> > >
> > > I read a few of the posts, which sort of conclude to update the
> graphics
> > > card driver. But if I had that problem, I should not have had VMD
> working
> > > fine before the Red Hat updates. Any insight will be helpful. I tried
> >
> > your conclusion is likely wrong. it usually are the updates
> > that mess up the installation, particularly if they update
> > the X server, since red hat doesn't distribute the binary
> > only driver from nvidia, only the dri/mesa derived ones.
> > those two have files that collide. the best chance is
> > probably to re-install the nvidia driver.
> >
> > axel.
> >
> > > reinstalling VMD as well. Thank you!
> > >
> > > -Shalabh
> >
> >
> >
> > --
> > Dr. Axel Kohlmeyer
> > akohlmey_at_gmail.com http://goo.gl/1wk0
> >
> > College of Science and Technology
> > Temple University, Philadelphia PA, USA.
>
> --
> NIH Resource 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/ Fax: 217-244-6078
>