HDMI to DVI adapter?

AQ makes good quality DVI->HDMI and HDMI->DVI versions of the adapter. I use one of each in my system to/from my Lumagen Scaler and RPTV with good results. I don't have the color space issue outputting 480p from my transport into my scaler and then scaling to 1080p and using 1:1 bitmapping mode (my DLP RPTV supports this) which allows the scaler to controller all rendering. 7.5IRE pedestal is used throughout.

Rreckstad,

Sorry I missed your reply.

Changing the output resolution didn't seem to help the issue. My understanding is that the Denon 1920 that I use has only outputs at the extended colorspace supported by HDMI, and doesn't support DVI's slightly reduced colorspace (I think there's only 3 values difference between them).

Consequently I switched back to component. The DVI input on the TV is sitting unused at the moment.

Some DVD players let you select the color palette to use, and some may autodetect. Just something to watch for - if you notice what appears to be pixelation during dark passages you'll know exactly what the problem is (took me forever to figure it out!)

Here's a good explanation of how these colorspace issues crop up when going HDMI -> DVI:

http://archive2.avsforum.com/avs-vb/archive/index.php/t-486428.html

Have any of you tried using a DVI cable between two HDMI output and input ports (HD player and TV) with an HDMI-to-DVI adaptor at the input end and DVI-to-HDMI adaptor at the DVI cable's output end versus using a plain HDMI cable (forgetting about audio signal for a while.) Basically I'm describing using a DVI cable between a TV and HD player with HDMI only outputs/inputs (i.e., no DVI inputs on either the player or TV, just HDMI.) Is this even possible with HDMI technology? (I believe so.)

I'm trying to determine if the HDMI cable messes up the video output relative to the DVI design which does not run audio interspersed with the video signal down a single conductor. My feeling is that it does, and significantly so. Obviously, in the comparison outlined above, you're adding the artifacts and distortions from a pair of adaptor interfaces when you put the HDMI-to-DVI/DVI-to-HDMI adaptors on the ends of the DVI cable, but that might not be enough to overcome the inherent design flaws of the HDMI design. (I spoke to a noted HDMI cable designer/manufacturer a few days ago who agreed that DVI was a better design for VIDEO only purposes, far exceeding HDMI in potential for video playback due to the mixing of audio and video signals on the HDMI wires. He said convenience was king when HDMI was designed, not performance. HDMI simply did away with lots of cumbersome, confusing wires for audio, making it consumer friendly, but NOT optimized for video.)

So let me know PLEASE if anyone has done this experiment (if such an experiment is possible.) Again, even though it's not fair to compare a DVI cable with HDMI adaptors at both ends vs. an HDMI cable with no adaptors, I believe this test will reveal a lot about the real performance capabilities of HDMI vs. DVI. If DVI still outperforms HDMI when DVI is clearly at a grave disadvantage (with HDMI adaptors at both ends), this will demonstrate the need to designers to get us back to that performance level by making cables that use the HDMI connectors but put a DVI cable in between, shit-canning the audio portion of the HDMI signal for those of us who only want the BEST in video resolution and playback.

Thanks for any input on the question.

HAPPY LISTENING/VIEWING!

Winston;

Trash the adaptors.

They weigh too much and will sooner or later fatigue you HDMI inputs. This is a real common problem.

Stick with the DVI/HDMI cable.