[good news] - 6 screens 1 mbp
i've tested 2 matrox triple head (DP) with the 2 thunderbolt output on only 1 mbp retina.
It works :o), but i've only :
2 projector on the first matrox triple head,
and 1 projector + 1 screen on the scond matrox triple head
2x 2x 1024x768,
cable : display port to vga
tested on mbp retina 10.8, max 6.
could someone test it if have more ?: 6 video-projector for example
cheers !
good news for portable rigs! btw, here's mention of prototype thunderbolt-graphics-card-break-out-boxes. that 'd be totally rad: http://www.tonymacx86.com/214-external-thunderbolt-graphics-cards-next-big-thing-gamers.html
for now i'll stick to my 10 screen desktop setup, GTX 660Ti + 1 x HD flatscreen + 3 x triplehead2go. no i don't use that many projectors but it sure was fun to try it out in a lab that had the stuff lying around :D
does anyone know if it's possible to use the hdmi output too ?
could it be possible to cumulate 3 triplehead on the same mbp with the twice thunderbolt and the hdmi ?
would love to know, as well. using HDMI port + thunderbolt (with adapter to DVI)
to my knowlegde macOS does not yet allow you to feed the video card back into the computer. this makes it not so useful for macbook pro users...
for a recent project i output to 5 displays from a MBP, 3 from thuderbolt using a triplehead2go, and two from HDMI, first using an HDMI to VGA converter (which required power via USB) and then to a dualhead2go box.