Dell P2715Q, no image using DisplayPort at resolution 4k @ 60hz

Zaza101

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Mar 27, 2010
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I bought a Dell P2715Q and I'm connecting it to my PC using a DisplayPort cable (bought separately, not RBR)

The issue basically is that the monitor doesn't display when using 3840 x 2160 @ 60hz but it does using 3840 x 2160 @ 30hz. I have also tested the monitor at 2560*1440 @ 60hz which works).

When i say 'monitor doesn't display' i mean that when ever the refresh rate is changed to 60hz the monitor goes into standby mode, I'm changing the refresh rates using the advanced settings in the resolution selection settings using my second monitor.

I've searched the dell website/internet and it seems like multiple people have reported this issue however i have not seen a fix for this issue mentioned. any ideas?



* What is the 20 digit alpha-numeric monitor serial number?

Serial: CN0GVDF874445553011S

P/N: WJKVX rev.A01


* What specific computer model?

?? – Computer is custom built, monitor in question is P2715Q


* What operating system?

Windows 8.1 64bit


* What video card?

AMD R9 290 (http://www.sapphiretech.com/presentation/product/product_index.aspx?pid=2167&lid=1)


* Video card driver version?

14.502 (Catalyst version 15.5) - latest as of 09 Jun 2015


* What video out ports are available on the video card?


1 x HDMI (with 3D)

1 x DisplayPort 1.2

2 x Dual-Link DVI-D


* What video out port are you using from the video card to what video in port on the monitor?


DisplayPort


* What cable are you using to attach the video card to the monitor?


DisplayPort


* Press the monitor Menu button to open the monitor OSD (On Screen Display). The bottom of that screen should show a resolution. What is listed?

Resolution : 3840 x 2160 @ 30hz

Maximum : 3840 x 2160 @ 60hz


* Was the monitor purchased from Dell or some reseller?

From Dell

Re-posted from http://en.community.dell.com/support-forums/peripherals/f/3529/t/19635846
 

I think you are at the mercy of Dell here. If it is a known issue with that monitor, only Dell can fix it.

The DisplayPort 1.2 standard clearly supports 4K @ 60Hz. And that has been in place since 2009. So its not like this is a new technology that is buggy. Its just a bug in this one model of monitor.

I think if I were you, I would contact Dell, and see what they have to say, and if they cannot resolve this issue, you might want to consider returning the display and getting something else. There are quite a few 4k monitors out there that support 60Hz now.

I even read an article on Anandtech this past week that focused in on a 50 inch TV that seems to work well as a monitor.

http://www.anandtech.com/show/9342/4k-htpc-hisense-tv
 

Zaza101

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Humm I'll see if i can get my hands on a different cable and try.



My plan is to return it if i cant get it to work, the reason I'm trying is because there are many more reports of it working at 60hz. I'll see what Dell has to say.

This is also one of the only 4k 60hz IPS models i've seen...


 

Zaza101

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Just encase anyone else runs into this issue, the problem was a bad DP cable.

Currently running the monitor with a VESA certified DP to mDP cable and have had no issues.
 

Toothless010

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P/N: WJKVX rev.A01

Return it. A01 was very bad firmware. Ask Dell to be sure and replace with A03 which fixed all the issues.

Check out dell forum for details

You have 3 year warranty
 

ASK THE COMMUNITY

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