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Display port from pc to computer monitor.

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Last Modified: 2020-06-07
The top photo is what I think we need to connect a pc with a display port to a standard computer monitor so we can use two monitors at the same time - one for internet and one for Youtube TV.
The second photo is an adapter we acquired from a friend and the small end does attach to our computer easily but it took a large amount of force to get it unplugged. It looks like what we need if it matches the first photo.
The third photo is an extension cable from the monitor and the type plug on both ends.

Is the adapter in photo one what we need?
What are the other two used for?
Thanks.
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Dr. KlahnPrincipal Software Engineer
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We want an adapter so we can try it and see if our video card can handle two monitors. At the moment the least costly is a display port to VGA (monitor) adapter for $3.00.
Whether the quality will be there for Youtube TV not sure.

The only flat screen monitors we have - one has DVI-D and the other has DVI-I
Both have VGA and the computer has a display port.

I think the local shop might take a look at our system and tell us if the video card we have is dual. The video card we have is part of the motherboard.
David Johnson, CDSimple Geek from the '70s
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depends upon what your 2nd monitor needs.. I would go from display port > HDMI, DP -> DVI, DP -> VGA in descending preference
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probably all monitors he has are VGA, and he just wants to connect 2 of them - as cheap as possible - right?
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The second computer has DVD-I   "male"   6 foot extension cable. (3rd photo)

Thanks.
Scott FellDeveloper
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At a couple of offices, I have various forms of DVI, Display port, HDMI and VGA all going to decent quality monitors for using with mostly word processing,spreadsheet and browser based software.  The only easy way to get dual monitors was to use the VGA and one of the other ports using a converter like you have shown and for for those purposes it works perfect. I do some light video editing and photoshop work for web developing as well as programming using a number of IDE's.  Same set up, HDMI to VGA converter to VGA port on the monitor and no issues.

I am on $100 to $150 monitors. If I had a $1000+ monitor and 4K, I am probably not going to use VGA.  There is a lot of good information here, but consider what you are doing and what you have to work with.   
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What do I need to look for inside my pc to know if the video card can support two monitors? Thanks.
Scott FellDeveloper
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Two outputs  aka your VGA and DVI/HDMI/Display Port
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you can post your pc model, and look up the video card model in device manager; and post these
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My computer has a VGA and a display port. It was said that my video card might not allow two monitors. And I'm not so much wanting half the screen on one monitor and the other half on the other. I'm wanting to use one monitor for computer and the other for Youtube TV.

Both monitors have a  DVI-D

The pc is a Lenovo ThinkCentre and I've look inside and outside and don't see the model.  

Here is most of my device manager. I've only used screen shot on the entries I think may show the video card. Mine is built into my motherboard.

device manager
Scott FellDeveloper
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My computer has a VGA and a display port.

Then you can use two displays

Once you hook up both displays, in windows 10 type, "Display Settings" in the search box on the bottom right.  That will allow you to either extend (what you will want) or mirror. This is under, "Multiple Displays" at the bottom of that section.  At the top, you can drag the Monitor 1 & 2 left and right to determine where each monitor is in relation to you. This helps when you drag your mouse from one screen to another as if they are connected (when you select extended mode)
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I'm not sure where the DVI-D 6 foot cable came from.

We have ordered a VGA to display port adapter and will post a new question in some weeks.

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