[Chimera-users] stereo

hsosa at aecom.yu.edu hsosa at aecom.yu.edu
Fri Nov 3 08:32:15 PST 2006

I didn't know that nvidia had workstation and consumer version of their 
drivers. In any case the only 91.36 version that I found was at 
If I install this driver I don't see any stereo setting when I get to 
the video driver setting menu. Chimera stereo doesn't work either.

In the NVIDIA web site there is a consumer stereo driver at:
The web site  says that it requires 91.31 ForceWare Graphics drivers to run.

I have tried the following permutations so far and I always get an error 
message when trying to go in stereo mode with chimera.

1 - NVIDIA driver  for Quadro4 downloaded from DELL support web site. 
(driver version?. date 2004)). This one seems to have native stereo 
support (at least it has a menu saying so).
2 - NVIDIA ForceWare driver 91.36 & Consumer stereo driver 91.31.
3 - NVIDIA ForceWare driver 91.31 & Consumer stereo driver 91.31.

With options 2 and 3 there are is a test option in the driver menu. This 
test seem to run OK (i.e. I can see the two stereo images in a scene 
alternating rapidly). Yet chimera gives an error message when I tried 
the stereo mode (or calling the program with chimera --stereo).

Maybe none of the above are the correct drivers ?.  Maybe  I need to 
reinstall chimera after installing the drivers ?.



Greg Couch wrote:
> On Thu, 2 Nov 2006, hsosa at aecom.yu.edu wrote:
>> How can I use stereo (sequential mode)  ?. If  I click the stereo button
>> in the camera dialog or start chimera using the command chimera
>> --stereo. I get the error message:
>> Unable to turn on stereo viewing
>> Unable to find hardware stereo support
>> (coulddm't choose stereo pixel format
>> Couldn't figure togl widget)
>> My graphic cards is a NVIDIA Quadro4 900  XGL.
>> The Nvdia Stereo driver (v: 91.31) is installed and enabled.
>> Chimera version is: 1 build 2255 2006/06/23
>> Monitors: Two (dual) digital DELL 1900 FP
>> Computer: Dual Xeon 1.4 Ghz, 1GB of RAM. Running Windows XP
> I've made your mistake, you need to remove the NVidia Consumer Stereo 
> driver -- the Quadro driver supports stereo natively.  The Consumer 
> Stereo driver is for GeForce graphics cards (ie., consumer graphics 
> cards, not workstation graphics cards).
> The lastest Quadro driver is version 91.36.
> You still need to configure the Quadro graphics driver for stereo 
> after you install it.
>     Greg Couch
>     UCSF Computer Graphics Lab

Hernando Sosa
Dept. of Physiology and Biophysics
Albert Einstein College of Medicine
1300 Morris Park Av.
Bronx NY 10461
phone	(718) 430-3456
FAX	(718) 430-8819
email	hsosa at aecom.yu.edu

More information about the Chimera-users mailing list