David,

I waited until the Intel Mac Pros came out to invest in a quad CPU machine with an nVIDIA Quadro FX 4500 graphics board.  However, now that it is in, I can't seem to get it to display in stereo with any of the current releases of PyMol, which all work nicely in mono.  I am trying to trace down the problem down and I was wondering if you has any ideas.

The setup:  The graphics environment (as seen by the Mac Pro via System Profiler) seems OK  and we are using a Apple Cinema Display as monitor 1 and a Sony CPD-G520P (which we had used for hardware stereo on a linux box) as monitor 2.   I have been using MacPyMOL 0.99rc6 universal build, launched as a Mac app or as a PyMOLX11Hybrid app.  

The problem:   Both launch well and do all the appropriate things (including cross-eyed stereo), except show quad-buffered stereo.  In PyMOL, the stereo switch is set to 1, but monitor 2 (our Sony CPD-G520P) doesn't change and the new NuVision emitter light doesn't go on.  

The naive questions:   

1. For the quad G5s, is it plug and play for the most part?  In their case, did the CRT have to be monitor 1 or 2? 

2. Must there be a command line option set in PyMOL?

3. Does the nVIDIA Quadro FX 4500 graphics board show stereo, even when the emitter is not plugged in (like the SGIs do)? If it does, then the problem is not a busted NuVision emitter.   

4. Is there an application to test the driver and graphics board?  I would like to find out if it is a driver or a hardware flaw.   

In any case, thanks for any help you can provide. 

Cheers,

Michael

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R. Michael Garavito, Ph.D.           Email:  [EMAIL PROTECTED]

Biochemistry & Molecular Biology    Office:  (517) 355-9724

Michigan State University              Lab:  (517) 353-9125

East Lansing, MI 48824-1319            FAX:  (517) 353-9334

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On Sep 18, 2006, at 9:06 AM, David Gohara wrote:



 The issue with stereo in Coot on a Mac currently has nothing to do with how the binary is compiled. Currently X11 on the Mac (and indirectly OpenGL) does *not* return the proper stereo visual element for stereo to work in X11 based applications. Apple is aware of this problem and is actively working on a fix (and when I say actively working on it, I mean it. They are taking this very seriously, but there are a few logistical issues that need to be resolved. This isn't meant to be an excuse for them, they should have caught this during development).

 That said, it's always helpful to have more people file bug reports against this issue, to help expedite this. I filed the original bug report under ID: 4377800 . So if you do file a report reference that number. They will probably respond that it's a known issue, but your bug report will be merged into the original one.

 Regarding O and Pymol. O will just work, as will the non-X11 version of Pymol, on both PPC and Intel, since neither of those versions requires X11 to run.

  Hope that helps,

Dave

David W. Gohara, Ph.D.
Center for Computational Biology
Washington University School of Medicine
314-362-2934 (phone)
617-216-8616 (cell)




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