Tearing at 144hz but OK at 120hz and below

[whitewiz]

I have an ASUS VG248QE monitor and ASUS GeForce GTX 780 DirectCU II graphics card. I've had both for 2+ years and have been working great until now. I cannot use my monitor at 144hz because it has really terrible tearing/fuzzyness. It works fine if I set the refresh rate to 120hz or lower, but certain games still act up if I play them full screen. Playing windowed usually fixes it. If I try to do a print screen, the tearing doesn't show up. I think this started after playing Antichamber, but not sure. Tried a new DVI-D cable and got the same effect. I'm thinking about trying displayport next. Any help would be greatly appreciated!

Here's a cellphone picture of what it looks like. The photo doesn't capture this, but the tearing is constantly refreshing so it looks like fuzzy, similar to a TV channel that is static-y. It kinda looks like a double image:
https://imgur.com/a/akrv1

[yuh25]

That photo looks exactly like what happens when I put my VG248QE higher that 144hz 

Check if its going over 144hz for some reason otherwise it might be a bad panel, I'm not an expert on monitors though.

[whitewiz]

That does look exactly like what I'm experiencing. I checked to see if I'm running higher than 144hz and using the ufo tracker website, but it looks to be right at 144hz, it was unable to v-sync though.

[yuh25]

13 hours ago, whitewiz said:

That does look exactly like what I'm experiencing. I checked to see if I'm running higher than 144hz and using the ufo tracker website, but it looks to be right at 144hz, it was unable to v-sync though.

Try contacting Asus about it. Could also be something wrong with the cables but if both the ones you used are dual link DVI-D then the only things I can think of that would be the problem is the panel or a bad firmware. but again, I'm not an expert and I really just guessing.