Re: [COOT] [ccp4bb] [COOT] 120hz LCDs and coot stereo

[Pedro M. Matias]

Sadly, it seems that at least for the moment, only higher-end Quadro 
cards will be supported (i.e., with a 3-pin stereo connector)


Look up "Stereo" in 
http://uk.download.nvidia.com/XFree86/Linux-x86/195.30/README/xconfigoptions.html 
for details.


At 18:00 18-12-2009, David J. Schuller wrote:

On Thu, 2009-12-17 at 18:25 -0500, Ajit Datta wrote:
> I just talked to the NVIDIA pre-sales people and they told me 
that this driver (195.22 beta) should work with 120Hz lcd monitors 
together with Nvidia 3D vision kit on a quadro graphics card.

>
> Ajit B.

http://www.phoronix.com/scan.php?page=news_item&px=NzczOQ

"NVIDIA Pushes Out 195.22 Beta Linux Driver
...
Other changes include...
support for NVIDIA 3D Vision Stereo on Linux with Quadro GPUs..."



--
===
You can't possibly be a scientist if you mind people
thinking that you're a fool. - Wonko the Sane
===
   David J. Schuller
   modern man in a post-modern world
   MacCHESS, Cornell University
   schul...@cornell.edu


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Re: [COOT] [ccp4bb] [COOT] 120hz LCDs and coot stereo

[David J. Schuller]

On Thu, 2009-12-17 at 18:25 -0500, Ajit Datta wrote:
> I just talked to the NVIDIA pre-sales people and they told me that this 
> driver (195.22 beta) should work with 120Hz lcd monitors together with Nvidia 
> 3D vision kit on a quadro graphics card.
> 
> Ajit B. 

http://www.phoronix.com/scan.php?page=news_item&px=NzczOQ

"NVIDIA Pushes Out 195.22 Beta Linux Driver
...
Other changes include...
support for NVIDIA 3D Vision Stereo on Linux with Quadro GPUs..."



-- 
===
You can't possibly be a scientist if you mind people
thinking that you're a fool. - Wonko the Sane
===
   David J. Schuller
   modern man in a post-modern world
   MacCHESS, Cornell University
   schul...@cornell.edu

Re: [COOT] [ccp4bb] [COOT] 120hz LCDs and coot stereo

[David J. Schuller]

On Thu, 2009-12-17 at 13:51 -0800, kai...@caltech.edu wrote:
> On this note,
>   I recently bought a viewsonic 120hz LCD (VX2265wm)  in the naïve believe it 
> should work as it has the right refresh rate. I tried to run it with the 
> normal setup, quadro with emitter via DIN, nuVision glasses, Linux. Here's 
> the problem: I have stereo in the top and the bottom but not in the middle of 
> the screen. The image is stable (no flickering or moving of the part that 
> shows stereo). It seems that I got the right refresh rate (any way to check 
> that?), but I don't understand at all what's going on.
>   Any clues?
> 
> Jens


That monitor appears on the supported displays list:

http://www.nvidia.com/object/3D_Vision_Requirements.html

So the problem could be one (or more) of two things:

1) The glasses may be incompatible. You could try it out with the nVidia
glasses.

2) The Linux driver may not be working properly yet.


BTW, I see that some 1920x1080 monitors are listed on the above page,
and should be available in January or so.




-- 
===
You can't possibly be a scientist if you mind people
thinking that you're a fool. - Wonko the Sane
===
   David J. Schuller
   modern man in a post-modern world
   MacCHESS, Cornell University
   schul...@cornell.edu

Re: [COOT] [ccp4bb] [COOT] 120hz LCDs and coot stereo

[Alexander . Schiffer]

I got the information from a supplier that there is a beta driver from
nvidia that supports the 120Hz LCD with nvidia stereo glasses. I have
not seen it myself but we have a demo scheduled in January.

Alexander

-Original Message-
From: CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] On Behalf Of
David J. Schuller
Sent: Thursday, December 17, 2009 6:19 PM
To: ccp...@jiscmail.ac.uk
Subject: Re: [ccp4bb] [COOT] 120hz LCDs and coot stereo

My current understanding is that

1) The new 120Hz LCD monitors are not compatible with the old goggles.
Something about the type of polarization used for the shuttering effect.
So if you were going to try out one of the new 120Hz monitors (~ $400)
you might also want to spend on the nVidia glasses and emitter kit (~
$200)

2) The 120 Hz LCDs are not supported under Linux drivers by nVidia at
present. Whether it might actually work or not, I can't say. I am
encouraged by the mention that the nVidia emitter can accept a signal
from the mini-DIN stereo port on some Quadro cards.


3) As someone mentioned already, the Zalman LCD monitors, which are not
120Hz and do not require goggles, but have diminished resolution, are
currently supported.


Cheers,


--
===
You can't possibly be a scientist if you mind people thinking that
you're a fool. - Wonko the Sane
===
   David J. Schuller
   modern man in a post-modern world
   MacCHESS, Cornell University
   schul...@cornell.edu


On Thu, 2009-12-17 at 11:09 -0500, Michael J Miley wrote:
> I have a linux workstation with a nvidia quadro graphics card and 
> matching emitter/lcd glasses setup from realD. It is very hard to find

> CRTs that are able to support the high refresh rates needed for
headache 
> free 3D viewing. The old SGI one I have is terrible, as it flickers
bad 
> in 3d mode.
> 
> My question is can i use one of these new 120hz LCD monitors with the 
> above setup for coot. Basically just switch out the crt for the LCD.
Has 
> anyone tried this?
> 
> I am aware that these monitors with a non-quadro nvidia card plus the 
> nvidia emitter/glasses setup will not work with coot. But i think the 
> reason is that the drivers for these non-quadro cards do not support 
> true quad buffered stereo.
> 
>