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Stereo: Difference between revisions
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== Stereo on TFT monitors == | == Stereo on TFT monitors == | ||
=== Nvidia 3D Vision === | |||
# 3D Vision Pro is ''not'' what you want, this seems to be for projectors | |||
# Quality is much better than Zalman and somewhat better than CRTs | |||
# Compatible monitors: 23.5" Desktop Display e.g. ACER GD245HQ 120 Hz LCD display, Alienware OptX AW2310 120 Hz, Samsung SyncMaster 2233 | |||
# The Nvidia 3D vision emitter that connects via USB only works on Windows, not Linux. | |||
# | # The currently (2013+) best NVIDIA 3D Vision solution on Linux is to buy one of the monitors with built-in emitter from http://www.nvidia.com/object/3d-vision-displays.html (we have the BenQ XL2420TX), and a cheap Quadro, e.g. (2013) the FX380 or (2015) K420. The latter has a Dual-Link DVI and a HDMI/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! We found that using a GeForce card instead of Quadro ''does not work'' on Linux. | ||
# www.nvidia.com/object/3d-vision-displays.html names Acer GN245HQ, Acer HN274H (DVI, 27", 390€-420€), ASUS VG278H (Asus VG278HR was confirmed on CCP4BB; DVI, 27", 500€), BenQ XL2420TX (see above, DVI and DisplayPort, 24", 500€), and ViewSonic V3D245 as monitors with built-in emitter. The three with prices can be bought in Germany. | # www.nvidia.com/object/3d-vision-displays.html names Acer GN245HQ, Acer HN274H (DVI, 27", 390€-420€), ASUS VG278H (Asus VG278HR was confirmed on CCP4BB; DVI, 27", 500€), BenQ XL2420TX (see above, DVI and DisplayPort, 24", 500€), and ViewSonic V3D245 as monitors with built-in emitter. The three with prices can be bought in Germany. | ||
# cheap Quadro cards with dual-link DVI-D or DisplayPort are: Quadro 310 (75€), 410 (80€) , 400 (116€), 500 (154€) - there are others. Quadro 400 and 600 have been reported to work, on CCP4BB. Make sure the card can do dual-link DVI if your monitor has only DVI input. Any card (including the "Windows only" ones!) listed at http://www.nvidia.com/object/3d-vision-pro-requirements.html#Quadro should work if a) it can do dual-link DVI if the monitor has only DVI input, and b) if the monitor has built-in emitter. DisplayPort is fine with the BenQ XL2420TX. | # cheap Quadro cards with dual-link DVI-D or DisplayPort are: Quadro 310 (75€), 410 (80€) , 400 (116€), 500 (154€) - there are others. Quadro 400 and 600 have been reported to work, on CCP4BB. Make sure the card can do dual-link DVI if your monitor has only DVI input. Any card (including the "Windows only" ones!) listed at http://www.nvidia.com/object/3d-vision-pro-requirements.html#Quadro should work if a) it can do dual-link DVI if the monitor has only DVI input, and b) if the monitor has built-in emitter. DisplayPort is fine with the BenQ XL2420TX. | ||
== TFT monitors: update January 2015 == | |||
Using NVidia's 346.35 driver on RHEL/CentOS/SL 7, I changed /etc/X11/xorg.conf to have | |||
Section "Device" | |||
Driver "nvidia" | |||
Option "Stereo" "10" | |||
EndSection | |||
but there is no stereo (coot only shows a slightly rotated view), nor is there any hint in /var/log/Xorg.0.log that stereo is disabled. In fact, it is disabled, due to the Composite Extension (see http://us.download.nvidia.com/XFree86/Linux-x86_64/346.35/README/xcompositeextension.html). If this is disabled by | |||
Section "Extensions" | |||
Option "Composite" "Disable" | |||
EndSection | |||
then the login screen (gdm) crashes. This is documented at https://devtalk.nvidia.com/default/topic/556113/3d-vision-and-composite-option/ . The only way out is to install a different display manager, like documented at e.g. http://jensd.be/?p=125 . This works well - I'm now using lightdm and the MATE desktop, an NVidia Quadro K420 and a BenQ XL2420TX. | |||
==Ono== | |||
You also need to set the environment variable STEREO for the stereo to work properly in ono: | |||
setenv STEREO on (tcsh) | |||
STEREO = on; export STEREO (bash) | |||
[http://dbb.urmc.rochester.edu/labs/wedekind/Wedekind-Lab/X-ray%20Lab/Methods/Nvidia-ONO.html] | |||
==Mac OS X== | |||
The following command needs to be run for Macs to be able to support stereo in X11 programs, such as Coot [http://xanana.ucsc.edu/~wgscott/xtal/wiki/index.php/Installing_Coot_on_OS_X] : | |||
defaults write com.apple.x11 enable_stereo -bool true | |||
== Stereo on conventional CRT monitors == | == Stereo on conventional CRT monitors == | ||
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Note that one can think this is rather silly to define two card, two monitors, two cards, and two screens. | Note that one can think this is rather silly to define two card, two monitors, two cards, and two screens. | ||
However, that the only way I know that one monitor can be stereo-enabled and the other one not. | However, that the only way I know that one monitor can be stereo-enabled and the other one not. | ||
==See also== | ==See also== | ||