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Question

Geforce 560 Ti to LED LCD TV connection problem (blue/green

Mar 29, 2015 1:53AM PDT

Hi all,

The issue I'm having is this: I've decided to plug my LED LCD TV into my PC so I can use my PC as a media center-type deal. My 560 ti came with a DVI-to-VGA adapter and I had a spare VGA port on my TV, so I decided to use a VGA cable to connect the two.

Initially, I purchased a 14-pin VGA cable. The picture came in fine, but I had a blue tint problem. I read someplace that a 15-pin cable is needed, which I just bought. I plugged that into my VGA-to-DVI adapter and now I have more of a green tint on my TV.

I began reading about the differences in DVI-to-VGA adapters, how there are DVI-A, DVI-I, and DVI-D adapters. Mine is a DVI-I adapter. Likewise, the 560 ti output seems to be a dvi-i. Both are dual-link.

So far, I've checked all the pins and they seem to be in good working order. I am also getting a signal, since I can interact with the TV screen as a second monitor. The picture is crisp and looks fine aside from the color. I tried toying with the colors selections on the TV itself (warm, neutral, cold, etc.) with no success, in addition to using nvidia's built-in color manipulation program, but without any luck.

Also recently purchased a new dvi to vga adapter to replace the BFG one that came with one of my cards, but no dice. The tint's still there and I can't figure out why.

I've been considering picking up a DVI-to-HDMI adapter and running a HDMI cable to my TV, but using the VGA cable would've been ideal since my TV only has the 2 HDMI ports.

Likewise, my crummy HP S2031 PC monitor has a perfect connection, colors and all. I checked the monitor's connector and it seems to be a single-link rather than dual-link plug. Could the reason for the tint be that I'm using a dual-link DVI-to-VGA adapter, rather than a single-link?

I considered taking apart my TV to dust it, but I thought I'd try and get some more input before trying this. I read that dust can form between connections and cause problems. Something else I haven't tried yet is updating my TV's firmware since I don't have a thumb drive handy.

Another solution I may try is to connect the VGA cable directly into my motherboard. I haven't done this yet because both cable and mobo are male connectors, so my next step will be to pick up a female-to-male adapter.

I'm at my wits end and was hoping someone here would have a spare moment or two to drop a comment if they think they might know what's up.

Apologies if this has come up already and been answered. I got a ton of hits when searching for problems with tints, but none of the solutions seem to work or address my specific problem.

Would totally appreciate any insight offered.

My specs are:

Asus M5A87 mobo
AMD PhenomII X6 1090T CPU 3.2ghz
nvidia geforce 560 ti
windows 7 home premium 64-bit

Trying to connect it all to a Westinghouse LD-4255VX, 2007 or 08 model.

Discussion is locked

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Answer
It sounds like you are trying to color correct with hardware
Mar 29, 2015 2:02AM PDT

My son used a Pantone Huey to correct colors for this. Remember that color control has thousands of prior posts so if you get two displays you will most likely see that they don't match. That's a fact.

VGA is analog and why they must color correct. How you correct this is usually done with software, not cables.
Bob

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re: color correct w/hardware
Mar 29, 2015 2:54AM PDT

Thanks for the suggestion, this sounds pretty accurate. Only problem is I don't know what software to mess with to correct the problem.

Looking through Westinghouse's website now for drivers or a firmware update, but either there aren't any or I can't find them. I suppose the TV could be too cheap to function properly with my card, but then it's odd that it would display anything at all.

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VGA is analog so all the warts will show.
Mar 29, 2015 3:06AM PDT

I'm reading http://www.tomshardware.com/reviews/nvidia-geforce-gtx-560-ti-gf114,2845.html to see if the DVI port has a Digital Link (HDMI.)

I spy a DVI-I (integrated, combines digital and analog in the same connector; digital may be single or dual link) so if this was mine I'd use the DVI to HDMI adapter to get a full digital link to the HDTV. If you don't have such, I'll suggest a few parts with links.

1. Adapter: http://www.amazon.com/Cable-Matters-Gold-Plated-Female-Adapter/dp/B007NLEF3W/
2. Cable: http://www.amazon.com/AmazonBasics-High-Speed-HDMI-Cable-Supports/dp/B003L1ZYYM/

This may not correct the color but it is my preferred connection. VGA being analog does have some iffyness.

More at http://windows.microsoft.com/en-us/windows7/calibrate-your-display
Bob

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cheers
Mar 29, 2015 7:45AM PDT

Thanks bob, I was just looking into HDMI cords. Was wondering if the analog is what's messing with the signal, and figured a digital-to-digital connection would have less issues. Will probably just use a splitter for the rear of the TV if it works out.

I'll definitely update this thread if it turns out this was an easy fix.