From: John Stone (
Date: Mon May 16 2005 - 19:51:04 CDT

  Can you try doing the following steps for me, and let me know what
results you get?
  start an xterm, then in that xterm do:
  /bin/csh (use csh so the other commands I list will work)
  source /usr/local/bin/vmd (use the startup script's env vars)
    (then immediately quit that VMD)
  gdb /usr/local/lib/vmd/vmd_LINUX
    (then issue these commands to gdb)
    (then load a structure that normally crashes your VMD)
    (... then try to crash it)
  where (this shows where VMD was when the crash occured)

If you can email the output to me, I should be able to determine if
this is another ATI driver problem, or something else.

  John Stone

On Sun, May 15, 2005 at 05:16:08PM +0200, Gyimesi Gergely wrote:
> Helo,
> Just for your info: I'm having the same problem, with the fglrx-8.10.19 and
> fglrx-8.12.10 drivers also, with a Radeon 8500 card. I've tried setting
> VMDSIMPLEGRAPHICS, but it didn't help.. The segfault only happens when
> loading large molecules (eg. proteins), it works OK for smaller ones. It also
> works OK in text mode.
> Looking forward to anything you can do, after May 20. :-)
> Gergely Gyimesi
> Ph.D student
> Institute of Enzymology,
> Hungarian Academy of Sciences
> >Hi,
> > Try setting this environment variable before starting VMD, it will
> >disable all of the advanced OpenGL features that VMD uses, in favor of
> >a more minimalistic and simpler OpenGL 1.1-based functionality:
> >
> >Let me know if this gets you up and running.
> >
> > John Stone
> >
> >
> >
> >
> >>Is there any way to work around the fglrx-8.10.19 driver crash? I've
> >>seen the posts and bug report but would prefer not to downgrade my
> >>driver. Is there any way to use MESA or some other software rendering
> >>instead?
> >>
> >>
> >
> >
> >

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