VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Jul 27 2010 - 23:58:01 CDT

Richard,
  This is undoubtably caused by a flaw in the xwin32 implementation.
Most of the X emulators out there fall a bit short when it comes to
heavy duty OpenGL apps. It is difficult to postulate which X11 calls
might be generating the errors, but if they are correlated with some
particular activity within VMD, I might be able to help you track this
down. If you load a molecule and just let it sit, do you still get
errors? If you then rotate it, do the errors crop up with every
OpenGL redraw? Are they associated with GUI activities or just
drawing activity in the VMD OpenGL window?

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Fri, Jul 23, 2010 at 04:47:49PM -0700, Richard Cook wrote:
> Hello,
> When VMD starts up on our cluster and displays back to certain machines on our network, we are seeing a huge number of errors on the console of the form:
> XRequest.142 BadRequest (invalide request code or no such operation) 0x46
>
> Would someone on this list be able to help us determine the source of these errors? They do not occur when displaying back to every machine, just some running xwin32 on Windows XP.
> --
> ???Richard Cook
> ??? Lawrence Livermore National Laboratory
> Bldg-453 Rm-4024, Mail Stop L-557
> 7000 East Avenue, Livermore, CA, 94550, USA
> ??? (office) (925) 423-9605
> ??? (fax) (925) 423-6961
> ---
> Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept.
> (opinions expressed herein are mine and not those of LLNL)
>
>
> 

-- 
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