VMD-L Mailing List

From: Michele Seeber (mseeber_at_bioc.unizh.ch)
Date: Wed Apr 30 2003 - 03:19:25 CDT

Dear John,

I am using the XFree86 version that shipped with redhat9, ie 4.3.0-2. The graphic card is a NVidia 4200 go and the resolution is 1920x1200 - it's a Dell Inspiron 8500 laptop.
The complete freeze occurred while I used NVidia-Linux-x86-1.0-4349 drivers. Today I upgraded to their latest release, 1.0-4363 (24/04/2003) and vmd just takes up 99% of the CPU when resizing an empty window. The system no longer freezes but the program is not usable... I think the drivers might need some more bug-fixing. Next week I will test them on a machine running redhat8.0 with basically the same graphic card (NVidia Ti4200) where I happily run VMD with older drivers and I will let you know the outcome.

Thanx for the suggestions.

On Tue, 29 Apr 2003, John Stone wrote:

>
> Dear Michele,
> What version of Xfree86, which video card, and which driver version
> do you have installed on your system? If the entire system freezes, then
> this is undoubtably a problem with the OpenGL drivers on your machine.
> If you can provide more details about your hardware, I can probably provide
> some suggestions to fix or workaround the problem. What resolution are
> you running the windowing system at? I've seen problems with NVidia cards
> when the VMD graphics window is made very large where they slow the machine
> to a crawl, freeze X, or otherwise behave erratically. Their newer cards
> and newer drivers seem to behave better in this respect. If its an ATI
> card, then I don't have any immediate thoughts since I haven't seen this
> type of problem with the ATI cards yet.
>
> Thanks,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Tue, Apr 29, 2003 at 10:31:40AM +0200, Michele Seeber wrote:
> > Hi,
> >
> > I am having problems with VMD on redhat9. It starts just fine, but as soon
> > as the 3D window is touched (moved, or another window is moved over it)
> > the whole system freezes.
> > As in a previous post, I was unable to use the MESA version, so I
> > installed the OpenGL version. The problem arose using VMD-1.7.1, VMD-1.8
> > and VMD-1.8b3.
> >
> > Has anybody working with VMD under RedHat9 experienced such behavior?
> > Thanks for your attention and help,
> >
> >
> >
> > --
> > --------------------------------------------------
> > dr. Michele Seeber, mailto:mseeber_at_bioc.unizh.ch
> > Dept. of Biochemistry, Caflisch Group
> > University of Zuerich
> > --------------------------------------------------
>
> 

-- 
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 dr. Michele Seeber, mailto:mseeber_at_bioc.unizh.ch
       Dept. of Biochemistry, Caflisch Group
              University of Zuerich
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