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# '''3D Vision Pro''' is ''not'' what you want, this is for professional CAD/CAM applications, and is expensive.
 
# '''3D Vision Pro''' is ''not'' what you want, this is for professional CAD/CAM applications, and is expensive.
 
# The quality of Nvidia 3D Vision 2 is better than that of Zalman, because Zalman stereo means halved vertical resolution.
 
# The quality of Nvidia 3D Vision 2 is better than that of Zalman, because Zalman stereo means halved vertical resolution.
# The Nvidia 3D vision emitter that requires connection via USB and Quadro 3-pin connector only works on Windows, not Linux!
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# The Nvidia 3D vision emitter requires connection to both USB and Quadro 3-pin DIN Stereo connector. This setup only works on Windows, not Linux! The cheapest (2014+) Nvidia Quadro with 3-pin DIN Stereo connector is the K4200 (http://www.nvidia.de/object/quadro-desktop-gpu-specs-de.html) which starts at ~ €700.
# Linux traditionally needs the DIN 3-pin connector found on the high end Quadros and [http://www.nuvision3d.com/the60gx.html NuVision] or [http://www.reald-corporate.com/scientific CrystalEyes] stereo glasses and emitter. The cheapest (2014+) Nvidia Quadro with 3-pin DIN Stereo connector is the K4200 (http://www.nvidia.de/object/quadro-desktop-gpu-specs-de.html) which starts at ~ €700. Compatible stereo monitors (120 or 144Hz) are [http://www.nvidia.com/object/3d-vision-displays.html listed] but this website has not been updated for years.
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# Linux traditionally needs the DIN 3-pin connector found on the high end Quadros and [http://www.nuvision3d.com/the60gx.html NuVision] or [http://www.reald-corporate.com/scientific CrystalEyes] stereo glasses and emitter.
# The currently (2013+) most affordable NVIDIA 3D Vision solution on Linux is to buy a monitor with built-in IR emitter (such as BenQ XL2420TX or ASUS VG278HR), and a cheap Quadro, e.g. (2013) the FX380 or (2015) K420. The latter has a Dual-Link DVI and a Displayport outlet, so can drive the stereo monitor, and an additional monitor. This solution avoids the USB/3-pin hassle altogether. See below for xorg.conf! GeForce cards (instead of Quadro) ''do not give openGL Quad Buffered Stereo'' on Linux (on Windows neither).
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# Compatible Stereo monitors (120 or 144Hz) for the above setups are [http://www.nvidia.com/object/3d-vision-displays.html listed] but this website has not been updated for years.
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# The currently most affordable NVIDIA 3D Vision solution on Linux (2013+ workaround) is to buy a monitor with built-in IR emitter (for example BenQ XL2420TX or ASUS VG278HR), and a cheap Quadro, e.g. the FX380 or K420. The latter has a Dual-Link DVI (DVI-D) and a Displayport outlet, so can drive the stereo monitor, and an additional monitor. This solution avoids the USB/3-pin hassle altogether. See below for xorg.conf! GeForce cards (instead of Quadro) ''do not give openGL Quad Buffered Stereo'' on Linux (on Windows neither).
 
# [http://www.nvidia.com/object/3d-vision-displays.html The Nvidia page that names monitors with built-in emitter] also has not changed for years.  http://geizhals.eu/?cat=monlcd19wide now has a "inkl. 3D-emitter" attribute. This currently only returns the Asus 278HR which can only be bought in Poland, or through EBay.
 
# [http://www.nvidia.com/object/3d-vision-displays.html The Nvidia page that names monitors with built-in emitter] also has not changed for years.  http://geizhals.eu/?cat=monlcd19wide now has a "inkl. 3D-emitter" attribute. This currently only returns the Asus 278HR which can only be bought in Poland, or through EBay.
# Cheap Quadro cards with DVI-I Dual-Link Connector (DVI-I DL or DVI-D) or DisplayPort work well. Make sure the card can do dual-link DVI if your monitor has only DVI-D input. Any card (including the "Windows only" ones!) [http://www.nvidia.com/object/3d-vision-pro-requirements.html#Quadro listed] should work if a) it can do dual-link DVI if the monitor has only DVI-D input, and b) if the monitor has built-in emitter. DisplayPort works well with the BenQ XL2420TX.
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# Cheap Quadros with DVI-I Dual-Link Connector (DVI-I DL / DVI-D) or DisplayPort work well. Make sure the card can do dual-link DVI if your monitor has only DVI-D input. Any card (including the "Windows only" ones!) [http://www.nvidia.com/object/3d-vision-pro-requirements.html#Quadro listed] should work if a) it can do dual-link DVI if the monitor has only DVI-D input, and b) if the monitor has built-in emitter. DisplayPort works well with the BenQ XL2420TX.
# If the Quadro has DisplayPorts 1.2 only, you will need a Club-3D CAC-1051 active DisplayPort/Dual-Link DVI Adapter 330MHz for about 110 € (do not buy the 270 MHz model, it will not work as the bandwidth is too low for 1920x1080@120hz) or for cards with miniDisplay ports, the Club-3D CAC-1151 active miniDisplayPort/Dual-Link DVI Adapter 330MHz.
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# If the Quadro has DisplayPorts 1.2 only, you will need a Club-3D CAC-1051 active DisplayPort/Dual-Link DVI Adapter 330MHz (110 €: do not buy the cheaper 270 MHz model, it will not work because the bandwidth is too low for 1920x1080@120hz) or for cards with miniDisplay ports, the Club-3D CAC-1151 active miniDisplayPort/Dual-Link DVI Adapter 330MHz.
 
# specs of latest ("Maxwell") and previous ("Kepler") generation of Quadro cards are at http://www.nvidia.com/object/quadro-desktop-gpus.html . A comparison of all PCIexpress Quadro cards is at http://en.wikipedia.org/wiki/Nvidia_Quadro#PCI_Express . Latest (2014+) with prices are at http://www.heise.de/preisvergleich/?cat=gra16_512&asd=on&asuch=quadro&xf=3312_2014&sort=p . Currently (2015), the K620 is the entry system with the best price/performance ratio; in the middle range the K2200 still seems affordable.
 
# specs of latest ("Maxwell") and previous ("Kepler") generation of Quadro cards are at http://www.nvidia.com/object/quadro-desktop-gpus.html . A comparison of all PCIexpress Quadro cards is at http://en.wikipedia.org/wiki/Nvidia_Quadro#PCI_Express . Latest (2014+) with prices are at http://www.heise.de/preisvergleich/?cat=gra16_512&asd=on&asuch=quadro&xf=3312_2014&sort=p . Currently (2015), the K620 is the entry system with the best price/performance ratio; in the middle range the K2200 still seems affordable.
  
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