HDMI > DVI adapter: does it add refresh lag?


#1

So, long story short, the old CRT monitor I used to use for online gaming broke a few weeks ago.

After studying the HDTV thread for a couple days I decided to pick up an Alienware OptX AW2210 monitor.

The monitor itself is great however it doesn’t have a VGA port and it didn’t come with a remarkably long DVI cable either.

My old-ass PC videocard doesn’t have a HDMI port so I resorted to use the DVI one and since the cable bundled with the monitor was too short I now have to purchase either a** DVI>DVI** or a HDMI>DVI cable…the problem is that the ones longer than 1,5 meters are nowhere to be found around here, so I was thinking of getting a long enough** HDMI>HDMI** cable (they’re much easier to find) and put it in place combined with a HDMI>DVI adapter/reduction (see image below).

http://www.dynavector.com.au/images/HDMI-DVI-adapter.jpg

Now my question is, does anybody knows if the use of the aforementioned “adapter” adds refresh lag?

Also, would using a** DVI (videocard end) > HDMI (monitor end)** cable be exactly the same as using a** HDMI > HDMI cable + DVI reduction/adapter**?

And, ultimately, Is there any advantage in using a** DVI > DVI** cable instead of a HDMI > DVI or** HDMI > HDMI + DVI reduction**, refresh lag-wise or are all of them basically the same thing?

Thanks in advance for your help and I apologize for being such a noob.


#2

I don’t see why as they’re exactly the same signal.


#3

The adapter is a pass through only adapter, it doesn’t change the signal. So I don’t think it should add any lag at all.


#4

I’m being told that DVI is generally faster than HDMI…anyone care to elaborate?


#5

"First, to clear away one element that can be confusing: DVI and HDMI are exactly the same as one another, image-quality-wise. The principal differences are that HDMI carries audio as well as video, and uses a different type of connector, but both use the same encoding scheme, and that’s why a DVI source can be connected to an HDMI monitor, or vice versa, with a DVI/HDMI cable, with no intervening converter box. "

Taken from http://forum.ecoustics.com/bbs/messages/34579/122868.html


#6

Yup. HDMI essentially carries DVI video and adds other stuff on other pins. You can convert DVI to HDMI by simply wiring the two connectors together without any processing. See: http://pinouts.ru/VideoCables/hdmi_dvi_cable_pinout.shtml