Question about Gefen DVI Splitter (EXT-DVI-144) Video Capture

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My configuration uses a less common DVI resolution. Does the resolution matter for a DVI Splitter, or will it work with any resolution?

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The resolution that a DVI Splitter supports can depend on several variables. If your displays and source are both Dual Link you will need a Dual Link DVI Splitter to maximize the resolution. It is also important to make sure that the DVI Splitter has EDID and HDCP learning capabilities in case the display is not recognized by default.

Posted on Jul 16, 2013


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HDMI&DVI ports already used on LG HDTV.I have X BOX 360 S,has a HDMI plug, can I use a HDMI splitter to plug in the X BOX in the DVI port ?receiving computer via HDMI now

You will not be able to split them, but they do make a HDMI Switcher, allowing you to use your Xbox 360 as number one and your PC as number 2, w you cannot mix both at the same time.

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Trying to set up 3 monitors in windows 7. using on board dvi to connect to one monitor and on board vga to connect to switch box (which then splits video signal to two vga monitors). can only get the dvi...

Sometimes it is difficult to answer a question without asking very basic questions. Using a DVI and a VGA ports will allow you to have screens with different things showing on them. If you use a splitter, the two monitors connected to the splitter will show the same thing on both screens. Is this what you want? I use a splitter at church to have Powerpoint on the main computer monitor, the program then shows on the screen on the wall and the TV monitor, as well as the second monitor at the computer. My splitter occasionally acts up, and I found that unplugging it and plugging it back in makes it work for another couple months. But a splitter for only two monitors is very cheap, no switch box involved.

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Using the splitter i can not get windows 7 to recognize the other monitor and enable multiple monitors

Hello there,
As you've said you're using a display splitter, the result will be identical screen on both monitors. splitters main function is to split VGA signals into N of outputs. where N=number of outputs. no matter how many monitors you attach to your splitter, the windows only recognize monitors attached directly to your video card. Windows requires a video card that has two or more output VGA or DVI outputs to get second extended monitor or display link device.
If you're video card has two outputs follow the instruction below.
1. plug the VGA or DVI other cable on the unused port. 2. power on the second monitor. 3. right click on the desktop, click screen resolution.

4. click the display in gray, Multiple Displays: it depends on the user.
5. I selected extended display. 6. apply and ok.

This spreads your desktop over both monitors and lets you drag items between the two screens. This is how most people use two monitors, and it's the default setting for desktop computers. you can use your mouse to grab the title bar (the top portion) of a window and drag it to your new display.

Hopefully this information is helpful. Thank you for using FixYa..

Jul 17, 2011 | Computers & Internet

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The internet send/receive/pc/activity lights - thus PC are not working. We have rechecked all of the cables, and it works when it is directly lined to the cable coming into the house, but not through any...

Had this issue with our local 'Insight' cable company several times, before I replaced our 'consumer-grade' (which had also worked before) splitter with another, better one (with less dB loss!). Went 'round-and-'round with the cable company over this--they tried selling us their modem (ha!), cajoling us about using splitters (uhm, whut?), and trying to blame 'neighborhood signal strength' issues, but the bottom line was, and is, that cable companies dole out signal power just like they do connections--and occasionally (unfortunately) they seem to 'poll' the lines and do some internal accounting to minimize their cost, naming rules they've always had involving 'devices' and such, but the point is to keep your signal going, bugging them less (believe me! dealing with them, hope you can ferret out an 'honest tech' instead of reaching one who is actually a 'scheming seller!')... anyway, after months of dealing with their peppered, dodgy, and questionable 'solutions', I did find that a 'contractor-grade' splitter did the job for us. Never had the issue again, and currently have a two-way splitter on that line. BTW, I just re-read your post, and if you have a 'three-way' splitter or more, try using a two-way, no matter the quality, your signal will depreciate less (signal loss in this case is comparable to losing less water through a pail because it has less holes in its bottom!). Hope this works for you--happy cabling!

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1 Answer

Samsung 27'' lcd tv for Pc Monitor resolution max is only 1024x768

Use a DVI (female) to HDMI (male) cable to connect your PC video card to the LCD TV. You will then be able to use the full resolution of the LCD TV. You will always be limited to the max resolution of the TV though, not matter your video card.

Jul 14, 2009 | Samsung Televison & Video

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Nvidia FX5200 DVI 1680 x 1050

Sounds like an issue i get but when using dual monitors. Most likeley windows just doesnt support that resolution with DVI. As you stated.

There may be some update but most likely not. There probably isnt a solution really.

Now, if the background image is not set to strech or handle that then you need to use a different background.

Some default back ground images for windows arent set to go to a certain size or dont resize correctly.

Try opening the display settings and tinker a bit if you havent already.

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1 Answer

PC via DVI to D52W20

I'm using a component dongle from an ATI x800. Never have had a problem. My resolution is 1664x936. I noticed that this RCA auto formats the screen size with the DVI-D or component, so you'll have to make the adjustments via your video card. Windows display properties might not let you select that resolution, so hopfully your video card software will allow you to pick a resolution. It would not let me use any kind of 720p resolution only 1080i settings would work.

Nov 25, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

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Panasonic 32" in LCD TC-32LX70

This sounds like the TV is not compatible at all to the display card in the computer.

Look in the TV's user book and see what the resolution is. It is also very important that the field or refresh rate is matched. Set the computer's display card to match exactly to the native mode of the TV set. This is for the resolution and the refresh rate.

Try the TV directly to the computer with the DVI to HDMI adabtor alone with no other monitor bridged in. If it works, then connect the computer monitor back up to share the feed. If the TV goes back out then you know that there is a conflict between the devices.

There is a way to do monitor sharing and each having different specs. There would be the need for an active monitor splitter with independent mode settings for each of the outputs. This is terribly expensive for home use.

In the past I have had problems with conversions between DVI and HDMI. There are a lot of complexities in the protocol for this and not every type of TV or monitor works well with this.

Jerry G.

Oct 12, 2007 | Sanyo HT30744 TV

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