DVI-D vs DVI-I Input lag on MSI GTX 970?

[Luckylock]

Now my friend and I both have the exact same video card (MSI GTX 970).

 

We both have 144 hz monitors.

 

When we plug into the top DVI-D port, it feels responsive and "normal".

When we plug into the bottom DVI-I port, the mouse / aim feels floaty in cs:go. I don't think that's placebo, but on paper, they should be the same since DVI-I port is DVI-D + DVI-A.

 

I think the bottom DVI-I port has more input lag than the top DVI-D port. Are we crazy / dreaming / hallucinating / etc? We've been playing competitive FPS games for years.

 

edit: we made sure that it's running at 144 hz on the bottom DVI-I port as well.

[Godlygamer23]

DVI-I and DVI-D are technically equivalent with the only difference being DVI-I can use a passive VGA adapter.

[Luckylock]

DVI-I and DVI-D are technically equivalent with the only difference being DVI-I can use a passive VGA adapter.

 

I know on paper it is exactly this. But after testing it repeatetly with different games, I am very convinced I feel the quite significant difference in responsiveness.

 

Anyone else willing to test this out? Swear to god there's a difference, even though on paper there shouldn't be one.

[Naeaes]

I've never really thought about it but I guess there could be something to this. This guy did a test on youtube. It would be interesting to do tests myself. I have two identical GPUs and three identical displays but I don't have a fast enough camera myself and the ports on the GTX580s are both DVI-I.

[Sauron]

It may be a defect in the monitor's firmware, are you using different ports or the same one with different cables?

[Luckylock]

It may be a defect in the monitor's firmware, are you using different ports or the same one with different cables?

 

That is not the case, my friend is using a BenQ 144 hz and I'm using an ASUS VG248QE 144hz.

 

 

Different port, same cable. The bottom DVI-I port seems to have added input lag.

[AstroBenny]

That is not the case, my friend is using a BenQ 144 hz and I'm using an ASUS VG248QE 144hz.

 

 

Different port, same cable. The bottom DVI-I port seems to have added input lag.

I'm sure it's just a placebo.

But, if it makes you feel better, use DVI-D

[Luckylock]

I'm sure it's just a placebo.

But, if it makes you feel better, use DVI-D

 

mhm, I guess it is.

[Glenwing]

Do a blind test have someone plug it in for you 10 times randomly, and see if you can tell 10/10 where it's plugged into.

[Luckylock]

Do a blind test have someone plug it in for you 10 times randomly, and see if you can tell 10/10 where it's plugged into.

 

that's what we're gonna do