Dell S2716DG DP issues

[Jake0210]

So my mom decided to lend me her 144hz Dell monitor since she hasn’t been using it for a while. I get it all situated and power it up and go through the usual configuring. I switch it to 144hz in nvidia control panel and it has insane flickering. I then went to update the drivers through GeForce experience, wait a bit, and the monitor stops working altogether. Windows nor nvidia control panel recognizes it when connected via display port. For some reason, when I use HDMI it works perfectly.

So far I’ve tried using every available display port connector on my PC, 3 on my video card and 1 on my motherboard. Each with the same result. I’ve reinstalled my display driver 3 times to no avail.

Specs: 

GTX 1080

Asus z170-A

Core i5 6600k 

16GB of Corsair ram

Windows 10 Home

Dell S2716DG

LG E2350

[WereCat]

The cable is most likely bad and cannot handle 144Hz at 1440p which is a common issue with cheap DP cables and sometimes even the cable included with the monitor may be flimsy.

[sazrocks]

What cable are you using?

[Jake0210]

Just now, sazrocks said:

What cable are you using?

I can’t remember because I got it a while ago. But wasn’t that cheap, around $40. It’s got some thick insulation on it.

[sazrocks]

1 minute ago, Jake0210 said:

I can’t remember because I got it a while ago. But wasn’t that cheap, around $40. It’s got some thick insulation on it.

That doesn't mean much. what DP revision does it support? It probably says on the side.

[WereCat]

1 minute ago, Jake0210 said:

I can’t remember because I got it a while ago. But wasn’t that cheap, around $40. It’s got some thick insulation on it.

Go to NVIDIA Control Panel and create custom resolution for 1440p but instead of 144Hz make it 130Hz or 120Hz, if it will work, the issue is most likely the cable.

[Jake0210]

Just now, WereCat said:

Go to NVIDIA Control Panel and create custom resolution for 1440p but instead of 144Hz make it 130Hz or 120Hz, if it will work, the issue is most likely the cable.

The problem is I can’t get it to display an image at all. Nvidia control panel doesn’t recognize it. 

[heimdali]

Display port can be a PITA.  It might require a power off to reset the graphics card.  I had to go through 4 cables to find one that works.  The one that does is from Delock and wasn´t expensive, but I don´t use 144Hz.

 

[Jake0210]

Got a little update. Tried another of the Display port monitors and it works fine. At this point it’s either the monitor or the cable.

[Jake0210]

Tried a different cable and monitor, every config works fine on the second monitor but none on the dell monitor. At this point I think there’s something wrong with the monitor itself. For some reason it appears on device manager but displays nothing. In events it says that device couldn’t be migrated.