5 Posts

662

May 31st, 2022 02:00

S2721GDF, upstream DP to HDMI

My S2721DGF is in use with a corporate laptop and my gaming desktop.

Laptop --> HP Z27u G3 monitor via USB-C -> S2721DGF via DisplayPort

Desktop RTX 2070 --> S2721DGF via HDMI and HP monitor via HDMI

The laptop/HP monitor are new, and I was previously connecting my desktop to the Dell by DisplayPort. I play games and want the FreeSync/G-Sync capabilities over DP so I tried using a Warrky 4K DisplayPort to HDMI adapter (4K capable) to connect the HP DP out to the Dell HDMI. It doesn't work, I just get a blank screen. I think the cable is detected but there is no signal detected. The adapter does work when I use it from the RTX 2070 DP out to the S2721DGF HDMI.

Is there anything I can do to be able to use the adapter to connect DP out to Dell HDMI? I was hoping it would work since the Dell S2721DGF is the last in the chain.

5 Posts

June 1st, 2022 10:00

Update: I tried an active DP->HDMI adapter and it works, so I now have the setup I want:

Laptop --> HP Z27u G3 monitor via USB-C -> S2721DGF using DP -> HDMI adapter

Desktop RTX 2070 --> S2721DGF via DP and HP monitor via HDMI

The adapter that works for me: https://www.amazon.co.uk/gp/product/B01M6WK3KU

 

 

5 Posts

May 31st, 2022 05:00

I was hoping somebody knew of a workaround to my problem. From the penultimate section of this blog:
https://www.barco.com/en/news/displayport-to-hdmi-conversion-should-i-use-an-active-or-passive-adapter


Note also that DP++ is not available on DisplayPort Alternate Mode over USB-C (as is used on many current compact devices like smartphones and notebooks). So if you use USB-C you will always need an active adapter to connect to an HDMI display.


Laptop->HP monitor is USB-C so suspect this lack of DP++ support comes into play. The adapter I have is passive, sounds like an active adapter is worth trying.

Community Manager

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56K Posts

May 31st, 2022 05:00

The HP Z27u G3 User's Guide specifies that the second monitor in the MST daisy chain must be using DP in port.

Capture.JPGCapture1.JPG

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