Component to HDMI to DVI conversion not working (help) - AVS Forum
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post #1 of 7 Old 09-19-2010, 07:08 PM - Thread Starter
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Hello - I need someone who really understands HDMI and DVI to help me out here:

Due to some legacy hardware, I need to convert a component signal to HDMI, then convert that to DVI. (I understand that I will only be getting video).

So I used a LinkStyle component to HDMI converter (amazon.com/gp/product/B003ABST3G)

and then used an Eforcity HDMI-F to DVI-M (amazon.com/gp/product/B000E8X5Z0)

But I get no signal on my Westinghouse LVM-42W2 42-Inch 1080p LCD Video Monitor. (Or more precisely, an all-black signal).

Now if I use a different HDMI signal (e.g. from the cable box), and convert that to DVI, it will work fine.

Or, if I convert the component to HDMI (but not to DVI), that will work fine.

However, for some reason, if I do Component -> HDMI -> DVI it will not work.

Can any of you smart guys (or girls) help me out? I'm ready to pull my hair out...

Thanks in advance
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post #2 of 7 Old 09-19-2010, 08:51 PM
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Your testing demonstrates an incompatibility between the monitor and the converter. Such is the stuff of HDMI and High-bandwidth Digital Content Protection, or HDCP. Why do you want to do this?

If it isn't 720p or 1080i/p it isn't HD. If it is 720p or 1080i/p it may not be HD content.
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post #3 of 7 Old 09-19-2010, 09:13 PM
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Or maybe your DVI input only accepts an HD signal (720p or 1080i) but you are sending a 480i/p Component signal into the converter...
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post #4 of 7 Old 09-20-2010, 05:55 AM - Thread Starter
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@txrose - My onkyo + dvd only have component output, and for my TV (which is wall mounted) I had to thread cables through a small aperture in the masonry too small for component (so I fit hdmi cables). The TV only has 1 HDMI input (used for the cable signal) and 2 DVI inputs.

How can it be a HDCP issue if:

1) The TV accepts the signal via HDMI but not DVI? I checked the Westinghouse specs (e.g. newegg.com/Product/Product.aspx?Item=N82E16889234002) and both have HDCP.

2) Non-copyrighted, non-HD content (e.g. a home-made DVD) also will not work.

I'm a rookie with HDCP but that doesn't make sense to me.
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post #5 of 7 Old 09-20-2010, 06:02 AM - Thread Starter
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@petern - That is not what the manufacturers list as their specifications:

Westinghouse LVM-42W2 input specifications for HD: "480i, 480p, 720p, 1080i, 1080p"
LinkStyle LK-21946+LK-9134 output specs: "HDMI"
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post #6 of 7 Old 09-20-2010, 06:18 AM
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I assume you have the same problem with either DVI input on the monitor.
Since the actual DVI and HDMI video protocols are the same and just use different pin connectors there is not reason for you to have a problem.
Check your DVI connector connections again. Be sure and not screw down one end of the connectors all the way before you screw down the other end or the cable will be cocked and will not connect all the pins. Take a few screw turns at a time on each end of the connectors.
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post #7 of 7 Old 09-20-2010, 06:57 AM
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Have you tried:
1) DVD component to adapter - HDMI to TV
2) STB HDMI to HDMI/DVI adapter - DVI to TV
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