3D Vision Blog

A normal user's look into the world of 3D Stereo Technologies

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Make Your Passive 3D Monitor or 3D HDTV Work with 3D Vision

February 11th, 2012 · 184 Comments · GeForce 3D Vision


Not that long ago Nvidia has introduced their “Optimized for Geforce” program that allows some certified passive 3D monitors such as Acer HR274H and Acer GR235HA to work with the 3D Vision video drivers, allowing you to use the full 3D Vision functionality with a passive 3D display. Prior to that in the old stereoscopic 3D drivers Nvidia had support for passive 3D monitors from Zalman, and although the newer Zaman 3D monitors were bundled with the iZ3D driver and not anymore with 3D Vision, they actually do work with 3D Vision and get optimized for the Optimized for GeForce functionality. If you have a passive 3D LCD monitor or even a passive 3D HDTV that is not supported by 3D Vision (Optimized for GeForce) you can actually quite easily make it work by installing a monitor driver with EDID override that will tell Windows and the video drivers that you actually have a different compatible display.



Here is an example using LG’s D2343P passive 3D monitor with installed Zalman ZM-M240W 3D Monitor EDID Override and the LG gets recognized as a Zalman 3D monitor. You need to install the INF driver from the link over the monitor driver you currently have installed from the Windows Device Manager, using the Have Disk option and if when get a warning message just confirm that you want the driver installed anyway. After that you may have to restart Windows in order for things to start working and the Nvidia video drivers to be able to properly recognize and activate the 3D support.



Opening the Nvidia Control Panel and going to the Stereoscopic 3D settings page you should see the “Optimized for GeForce” logo if everything is working properly and clicking the Test Stereoscopic 3D button should bring the Nvidia 3D test on the screen that should be working just fine when you put on the passive 3D glasses that came with the monitor. After that you can the 3D Vision Photo and Video Player and even play games in stereo 3D mode just like you would with an active 3D display and with the 3D Vision glasses. Of course using passive 3D would mean that you would have some limitations like the half vertical resolution when in 3D mode, the lower vertical viewing angle etc., but still you will be able to use passive 3D displays with your Nvidia graphics card and with all the features that 3D Vision offers, an not only with the iZ3D or the DDD TriDef 3D drivers, so you will simply have one more alternative available. I’ve tested this method and it works just fine even with the latest 295.51 beta video drivers from Nvidia, so you should have no trouble making it work. If you try this on your passive 3D setup, feel free to share your feedback and how it works with your specific 3D hardware, thanks to Butmuncher for finding out about this method.

Update: Since the Zalman EDID override does not support audio for HDMI connection to the monitor, you should use this driver only for DVI connection to the passive 3D display. If you wan to use HDMI connection and have audio over the interface as well, then you should install the Acer EDID override driver. Both INF files are included in the archive below, and special thanks to Greg Gilbert for providing the dump from the Acer HR274H display.

Here you can download the EDID override INF files that you would need for this to work…

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Acer HR274H is a 27″ Passive 3D Monitor with 3D Vision Support

November 29th, 2011 · 33 Comments · General 3D News


Today Acer has announced in USA the release of their new 27-inch Acer HR274H 3D monitor using passive film-patterned retarder (FPR) technology, but at the same time it also apparently supports what Nvidia’s 3D Vision technology does (according to what Acer has released in the official press release)… falling into a category of products called “Optimized for GeForce”. But there is more, this monitor is equipped only with HDMI 1.4a interface and analogue VGA, there is no Dual-Link DVI. Acer HR274H apparently also features real-time 2D to 3D conversion built in the display, so it is done by dedicated hardware and should work with different inputs.

Acer HR274H 3D monitor specifications:

Panel Size: 27″ (69 cm) Wide Screen 16:9, TN, LED backlight
Native Resolution: 1920×1080 pixels
Pixel Pitch: 0.3114 mm
Brightness(Max): 250 cd/m2
Contrast Ratio (Max.): 100,000,000:1 (dynamic)
Viewing Angles: 170° H / 160° V
Response Time: 2 ms (Gray to Gray)
Video Inputs: 2x HDMI 1.4a, VGA
Power Consumption: 27.50 W On, 1.4W Sleep, 0.6W Off/Standby
Integrated Audio: 2x 2W stereo speakers
Monitor stand: tilt +30°~-30°
Dimension (WxHxD): 25.5″ x 18.5″ x 7.6″ (648.1 x 468.5 x 192 mm)
Weight: 13.2 lbs (6 kg)



It is interesting to not that the user has control over the 3D functionality that allows the activation of 2D-to-3D conversion on demand as well as the option to choose between not only frame packaged 3D input, but also Side by Side and Top/Bottom. And this is something that we did not have with some of the first 3D-capable monitors that came out with HDMI 1.4 interface also supporting stereo 3D.

Acer HR274H comes bundled with a pair of Acer-branded passive 3D glasses. And since it uses HDMI 1.4a interface, the 3D modes you are going to be limited are of course 720p 50/60Hz 3D and 1080p 24Hz 3D as well as 1080i 50/60Hz 3D mode. The new 27-inch Acer HR274H 3D LCD monitor should be available for U.S. customers at leading retailers with an MSRP of $599 USD. The European price of the 27-inch Acer HR274H should be at around 450 Euro and it should soon be available. There is also a smaller 23-inch 3D model with the same features and capabilities – Acer GR235HA, that is an alternative to Acer GR235H, but not the same model. The price of the Acer GR235HA monitor in Europe should be about 240 Euro.

Update: Ok, so it is not exactly official 3D Vision support, but instead Acer has licensed the GeForce 3D software driver from Nvidia in order to get the same game support, features, etc. as 3D Vision-ready active monitors do offer, but in the form of a passive 3D solution.

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