Extending laptop across 3 monitors

Question

Im playing around with WebRTC using node.js

I have a file called server.js that pretty basically sets up an express.io socket setup for a few things, grabs the users camera, displays the video etc. All very basic. This server.js is using ejs. I have an index file elsewhere that is shown using app.render on my index.ejs file to display it.

From this index file I would like to use MongoDB. Here is my problem.

I am using npm, so I installed browserify, trying to find a way I can use mongodb on the client-side file. I made a simple main.js

var MyMongoDB = require('mongodb');
// sometimes had something like this - tried numerous examples from online
// module.export.MyMongoDB = MyMongoDB;
// in various forms.

I then used browserify to create a .js file that could be used with tags in my index file.

I can get this far, but then I cannot for the life of me figure out how to USE this once its included! My page has

<script src="necessaryFile.js"></script>

But later on in my javascript area, I cannot figure out how to access mongoDB. Its not under any names it would NORMALLY be, or where it is if i require it directly from the server.js (where it works properly).

I have read the browserify page, as well as 5 or 6 random stack posts or blogposts and I cannot get this to work.

Im wondering if it may be due to using render by any chance? Or have I just done something horribly dumb here

Solution 1

Some systems will not do this, its some kind of limitation of the hardware and or the software. I've seen this on many makes and models. Some will do three screens, some won't. I know you have Nvidia chipset, but many times it's just something that can't be worked around.

Solution 2

Most graphics cards support a maximum of two screens at a time, even if you have enough video outputs to handle more. On a desktop, the easy way around this would be to install a 2nd video card. This is obviously more difficult to do on a laptop. The only way I know of to get a 2nd video card for a laptop is with an external one.

I have used a USB-to-DVI card, similar to this, for years. It works well, but I don't know if it would hold up for gaming (mine plays video fine, but I haven't tried gaming with it). You may be able to find some that run on a PC Card slot or a mini-PCIe, if your laptop has either, but I have no experience with that type of card.

Comments

[Ivan Viktorovic]

If you have a docking station you should try to connect one monitor to the dockingstation and the others to the laptop. With 2 monitors it worked for me using a lenovo notebook.