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Is it possible to connect one laptop (VGA) to two projectors (one has VGA, other has VGA and USB) and have them both project the same image? Are there adapters or something for this (wireless?) or some kind of product that will make this easy?

Want to be able to do this in a very large conference room.


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closed as off topic by Zoredache, Greg Askew, John Gardeniers, HopelessN00b, Ward Sep 20 '12 at 2:40

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Need more details, we talking HDMI,VGA,DVI? – Lucas Kauffman Sep 19 '12 at 20:36
Sorry, that'd be VGA. – David Sep 19 '12 at 20:38
up vote 5 down vote accepted

Make and model of projector? Depending on this, you have a few options.

  • Some projectors have a VGA OUT for this so you can chain projectors. You can go from the computer to projector 1's VGA in, then from projector 1's VGA out to projector 2's VGA in.

  • Some projectors have a software package that you can install and broadcast to multiple projectors over the LAN.

  • A VGA multiplier will take one VGA input and provide multiple VGA outputs.

We have two similar (but slightly different) projectors. Casio XJ-S57 and XJ-S58. Not too sure on the specifics of this, but if we used a multiplier, could we use REALLY long (50+ft) VGA cables? – David Sep 19 '12 at 20:46
Yes, but check with the manufacturer for their recommendations. I've used high quality 100FT VGA cables without issue. – Aaron Copley Sep 19 '12 at 20:48

What you need is a VGA splitter cable.

Is there any disadvantage of this compared to a VGA multiplier? – David Sep 19 '12 at 20:48
This cable is in fact a tiny VGA multiplier. – longneck Sep 19 '12 at 20:52
Non-powered though. I assume a powered multiplier would be much more friendly with long distances? – David Sep 19 '12 at 20:54
As I quote MikeyB: You'll notice the colours are dimmer on the unpowered splitter. – Lucas Kauffman Sep 19 '12 at 20:58

I think a USB to VGA adapter should help. And depending on your projector type, you might be able to connect the other projector to the first one. (If it has that option.)

I made some basic edits to your answer. While the content itself wasn't terrible, formatting goes a LONG way on this site. – Aaron Copley Sep 19 '12 at 20:58
ok, thank you, i'll keep that in mind – rAlen Sep 19 '12 at 20:59

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