Hi Jean-Marie, If a Windows 10 graphics update, messed things up, then it would have broken other programs beside Chimera and you should reconfigure your graphics driver as described in option 2 below. But Chimera has builtin support for the Zalman monitors, so that is not needed. Option 1) Using the Chimera documentation, with the Help / Search Documentation dialog, and then typing in Zalman, it gives you a link to the documentation for the stereo command. And that says to use the "row stereo, right eye even" stereo mode. If that doesn't work, then your graphics driver is decades old and needs updating. Option 2) For systems with NVidia Quadro graphics, you can get "sequential stereo" to work (which is designed for active 3D glasses that some 3D stereo TVs have. where the graphics driver needs to output a special signal), by reconfiguring the Quadro graphics driver. I don't have a Quadro system in front of me right now, so double check this -- go to the 3D settings, *not* the stereoscopic settings, and (a) enable stereo and (b) choose the correct stereo mode for the Zalman. Then both "sequential stereo" and "row stereo, right eye even" will work. Salut et bonne chance, Greg On 3/10/2017 10:35 AM, Tom Goddard wrote:

Hi Jean-Marie,

Your problem is very likely that Windows 10 did on automatic graphics driver update on you and the driver is broken in some way so Chimera cannot do the Zalman rendering. You can rollback graphics driver updates on Windows 10 — you’ll have to search online how to do that.

Tom

...

On Mar 10, 2017, at 2:16 AM, Jean-Marie WURTZ wrote:

Hi, I am a long time user of chimera and had never such a problem. I would like to use the interlaced stereo with a zalman monitor but I get the following error : Unable to turn on stereo viewing (Unable to find hardware stereo support (couldn't choose pixel format Couldn't configure togl widget)).

I must say that VMD stereo is working. But I understood also that both programs work differently with regard to steero. My configuration: Dell M4500 precision Windows 10 Quadro FX 1800M driver 342.01

What can I do to get it working? Thanks for your help. Best regards --

Jean-Marie Wurtz Professeur de Bioinformatique Tél : +33 (0)3 69 48 51 04 Fax : +33 (0)3 88 65 32 76

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