Question 1440p 144Hz monitor issues

May 10, 2019
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Hi all

I've just bought a Dell S2719DGF gaming monitor and struggling to get it all working.

It didn't come with a DP cable, so I went and bought one, a DP 1.2 cable. When I use this and I set my monitor and Nvidia panel to 144hz I get horrible flickering. At 60Hz it's perfect.

I went back to my HDMI cable, and in windows I still have the option to use 144Hz and it is set to 144Hz, same in Nvidia, this is now on HDMI 2.0

It feels really smooth, but when I run the UFO test for refresh rates it is showing 60Hz and I don't feel like in games it has changed much. The 1440p feels smoother but I don't notice a big jump as I would expect going from 60Hz to 144Hz.

My question is, what cable do I actually need to run this at 1440p and 144Hz, and how to a fix this flickering? It feels like a cable issue to me. Drivers on my GPU and monitor are up to date.

Any help is greatly appreciated.

Thanks

Ross
 

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