Yes wrote:
I just saw an ad for an ASUS monitor showing 9 monitors in a 3x3 matrix
being used to show a picture. It got me curious.
Other than the monitors themselves, what hardware would be needed to do
that? For example, would something like that need 9 graphics cards,
one for each display? Instead, is that done using a specialized card?
Does it require custom software? Does it require high-end CPUs and/or
massive amounts of RAM? Or are there specially made electronic devices
produced to do that?
Thanks
John
Usually video cards have overall resolution limits. The dimensions of
each screen would matter. One video card could not drive nine 4K monitors
for example. That would be too much.
The best video card, has six connectors on it. Features such
as Eyefinity, allow arranging the two "heads" of the video card,
as two strips of three monitors. (NVidia has a feature like this
too, but I don't know if the max config is also 2x3 like this.)
+-------+-------+-------+
| | | | six outputs, two heads
+-------+-------+-------+
+-------+-------+-------+
| | | |
+-------+-------+-------+
If you split the bottom three signals with Matrox
adapters, you might be able to get to nine that way.
Note that you have to research the resolution limits and
supported situations quite carefully when using these.
They're not a "free for all" device, and planning is required.
https://www.matrox.com/graphics/en/p...go/digital_se/
I would think the Eyefinity idea works the best, if the top and
bottom 1x3 are the same. But the second 1x3 may be able to have
overall dimensions different than the first.
+-------+-------+-------+
| | | | six outputs, two heads
+-------+-------+-------+
+-------+-------+-------+ Then split each rectangle
| | | | into two vertical, with
| _ _ _ | _ _ _ | _ _ _ | a matrox splitter
| | | |
| | | |
+-------+-------+-------+
The main advantage of using a single video card, is maybe it
won't "tear" quite as bad. I've tested a couple low end cards
here once, and they don't update at quite the same split second,
spoiling the effect. YMMV.
There is an entire website, filled with pictures of customer
configurations involving multiple monitors. This one handles
sixteen monitors, powered via four video cards. It's possible
the video card has two GPUs on it.
http://www.realtimesoft.com/multimon...lse&m on=desc
https://www.techpowerup.com/gpu-spec...-nvs-440.c1463
"Quadro NVS 440 combines two graphics processors to increase performance."
Paul