3D Vision Blog

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

3D Vision Blog header image 4

3D Vision over DisplayPort 1.1 Interface with BenQ XL2420T or XL2420TX

February 6th, 2012 · 18 Comments · GeForce 3D Vision


The BenQ XL2420T and BenQ XL2420TX are the first 3D Vision-ready 3D LCD monitors that come with support for 3D over DisplayPort 1.1, so you actually have an alternative to using the Dual-Link DVI interface they they are also equipped with for 3D. You should have in mind however that there are some specific limitations and requirements when using 3D Vision over DisplayPort with these displays and you should be well aware of these if you plan on purchasing any of these two displays for use in stereo 3D and that goes not only regarding the use of DP. The BenQ XL2420T/TX are still the only 24-inch 3D Vision-ready monitors that support the new 3D Lightboost technology for providing increased level of brightness when in stereo 3D mode, the other two alternatives are from Asus and Acer, but they are 27-inch models and they do not feature DisplayPort connectivity. The support for 3D vision over display port has been introduced in the R290 video drivers from Nvidia and more specifically in the 290.36 Beta drivers, so it will not work with older drivers.

The BenQ XL2420T is the more affordable version that does not come bundled with 3D Vision 2 active shutter glasses and it also does not feature a built-in IR emitter for the 3D Vision glasses. This is very important, because without the built-in IR emitter you will not be able to use the HDMI interface of the monitor for stereo 3D, even if you connect an external IR emitter to your PC. Using an external infrared emitter for 3D Vision glasses gives you only the ability to use the monitor in stereo 3D mode with a PC over the DL-DVI or the DisplayPort 1.1 interface. This means that the BenQ XL2420T monitor is more suitable for gaming in 120Hz 2D mode or using for stereo 3D content only with a PC, you should not get the T-only version of the monitor if you plan on using it with a PS3 in 3D or any other HDMI 1.4-based stereo 3D-capable devices, because you would not be able to. The HDMI interface present on the BenQ XL2420T monitor is 2D-capable only and you are of course not able to use 120Hz refresh rate over the HDMI, you need to use the other interfaces for the higher refresh rate.

The BenQ XL2420TX is the more expensive version that comes with a built-in infrared emitter and a pair of 3D Vision 2 active shutter glasses, so you are ready to use the monitor in 3D mode over DL-DVI, DisplayPort or HDMI 1.4. Using this monitor over the DisplayPort interface however has some limitations based on the GeForce GPU you have in your computer, so have in mind that if your video card is based on GeForce 8 series, GeForce 9 series, or GeForce GTX 295/280/260 GPU you would still need an external IR emitter to use the monitor over the DP interface. Of course this is only related to using DisplayPort, if you have any of these older GPUs you can still use the built-in IR emitter over the DL-DVI interface. If your GPU is any newer you would be able to take advantage of the DisplayPort 1.1 connectivity with the built-in IR emitter inside the display. And one more thing, currently NVIDIA 3D Vision Surround setups are still not supported over DisplayPort, so if you plan on using a three monitor 3D setup, then you’ll have to stick to using the Dual-Link DVI interface for now.

→ 18 CommentsTags:······

New Nvidia GeForce Drivers Version 290.36 Beta Are Available

November 28th, 2011 · 8 Comments · GeForce 3D Vision


Lately we’ve been literally attacked with a lot of hit titles to play during the holiday season and more are constantly coming out from different game developers. And the GPU makers have been pressed a bit in releasing a lot of new driver updates with fixes and improvements to make things work as they should or to bring better performance for the gamers. And today comes a new beta driver for the owners of Nvidia-based video cards in the form of driver version 290.36, the first release from the R290 series of drivers. This beta driver brings some new features and a lot of fixes, but as usual I’ll focus on what is new regarding stereoscopic 3D support and you can find the full release notes here in PDF format should you be interested in all the details.

The new beta driver has an interesting new feature for 3D Vision, it adds support for 3D Vision over the native DisplayPort 1.1 connection available on the new BenQ XL2420T and BenQ XL2420TX monitors (supporting 3D Lightboost technology). These are apparently the first 3D Vision-ready 3D monitors with DisplayPort available, so Nvidia has also found a reason to add support for 3D Vision to work over DisplayPort as well. Previously DisplayPort was only used together with active adapters to convert it to Dual-Link DVI, mostly for output from laptops that did not have DL-DVI interface, but now you should be able to directly connect one of these BenQ 3D monitors and use it in 3D mode.

The new driver also comes with added or updated the following 3D Vision game profiles:

– Call of Duty: Modern Warfare 3 – rated Good
– Cang Sheng – rated Good
– Diablo 3 – rated Good
– Fei fei – rated Good
– Final Combat – rated Good
– L.A. Noire – updated rating to 3D Vision Ready
– LEGO Harry Potter: Years 5-7 – rated Fair
– Qian Nv You Hun Online – rated Good
– QQ Xi You – rated Good
– Sonic Generations – rated Good
– Xian Tu – rated Good
– Yong Bing Tian Xia Online – rated Good

There are a lot of Asian games being added with a rating Good, L.A. Noire is apparently finally fixed, MW3 should also work better in 3D. There are also some specific fixes for 3D Vision, 3DTV Play and stereo 3D in various specific situations and hardware combinations that you can read about in the detailed release notes I’ve linked already. But based on the user experience from the first people that have installed the new beta drivers and the issues and complaints that some of them are having, especially in stereo 3D mode, I would not advice you to hurry and install the beta, you may wish to wait for the WHQL release. But if you do install the 290.36 beta, you are welcome to share your feedback in the comments below…

→ 8 CommentsTags:·······