VMD-L Mailing List

From: Jindal Shah (jindal.shah_at_gmail.com)
Date: Mon Jul 25 2005 - 14:02:11 CDT

John,

Thanks for the information. I will look into this.

Jindal

On 7/25/05, John Stone <johns_at_ks.uiuc.edu> wrote:
>
>
> Jindal,
> The cause of your performance problem is obvious from the OpenGL
> messages. You're using Mesa as your OpenGL renderer, and it's not
> clear whether the driver you're using there is providing anything
> more than a simple framebuffer interface. My guess is that your
> system is falling back to pure software rendering, which explains
> the performance problems you're having. You'll need to install
> a vendor-provided video driver in order to get hardware acceleration
> on your machine if the Mesa driver isn't doing it (and it sounds like
> it isn't). 3DLabs, ATI, and NVidia all provide Linux drivers though
> you'll have to check to see if your card is supported by their drivers.
> If not, then I'd say it's time to consider upgrading your video board
> to one that's got hardware accelated rendering support on Linux.
>
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Mon, Jul 25, 2005 at 01:58:51PM -0400, Jindal Shah wrote:
> > John,
> >
> > Thanks for your reply. The OpenGL information area (I assume you refer
> to
> > the vmd console panel), there are no errors. Following information is
> > generated.
> >
> > Multithreading available:1 CPU detected
> > OpenGL renderer: Mesa DRI Range 128 20030328 AGP 1x
> > x86/MMX/SSE2
> > Features: RN MTX
> > Texture: 2-D (1024x1024) 3-D(256x256x1), Multitexture(2)
> >
> > Thanks
> > Jindal
> >
> > On 7/25/05, John Stone <johns_at_ks.uiuc.edu> wrote:
> > >
> > >
> > > Jindal,
> > > What does VMD print in the OpenGL information area when it first
> > > starts up? This is usually very informative. In particular, look
> > > to see if you get any warnings like "DRI extension missing on display
> :0.0
> > > "
> > > or something of that sort.
> > >
> > > John Stone
> > > vmd_at_ks.uiuc.edu
> > >
> > >
> > > On Mon, Jul 25, 2005 at 01:20:58PM -0400, Jindal Shah wrote:
> > > > I am running VMD on Linux with Fedora Core 3.0. The graphics is too
> slow
> > > and
> > > > the resolution is also note that great. I was wondering if any of
> you
> > > > experience same problem and how to fix this.
> > > >
> > > > Thanks,
> > > > Jindal
> > >
> > > --
> > > NIH Resource for Macromolecular Modeling and Bioinformatics
> > > Beckman Institute for Advanced Science and Technology
> > > University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> > > Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
> > > WWW: http://www.ks.uiuc.edu/~johns/ Fax: 217-244-6078
> > >
>
> --
> NIH Resource for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
> WWW: http://www.ks.uiuc.edu/~johns/ Fax: 217-244-6078
>