P2725H, no display and PD over USB Type-C Port

You will need an USB Type C to DisplayPort Adapter or cable 

https://www.dell.com/en-us/shop/visiontek-usb-c-to-displayport-14-2m-cable-m-m/apd/ab060546/monitors-monitor-accessories

#Iwork4Dell

Hi @Chino de Oro​,

Appreciate your prompt response.

When I enquired about the same with the Dell sales team executive (don't remember but at least twice) they certainly confirmed that the Type-C port can be used to connect the monitor as an external port. They also confirmed it is compatible to the thunderbolt 3. 

So after this confirmation, I had bought this product. Not sure why they had provide me the wrong information.

Below is the snapshot of the transcript with the Dell Sales team executive. Please refer the coloured text.

If needed I can forward the full chat transcript received from dell after the conversation was closed.

( 44s ) Dell Advisor - Rohan: Welcome to the Dell India Sales Chat! My name is Rohan and I will be your Dell Sales Expert.
( 45s ) gunjan: I am looking to buy Dell 27 Monitor - P2725H
( 1m 2s ) gunjan: But need some information on it
( 1m 42s ) Dell Advisor - Rohan: Sure, Let me help you with that. Welcome to Dell :)
( 2m 21s ) gunjan: So as I see in the monitoer tech specification.
It has one USB 3.2 Gen1 Type-C downstream with up to 15W PD (data only)
( 4m 9s ) Dell Advisor - Rohan: Yes, The Type C cable is upto 15W Power Delivery
( 4m 16s ) gunjan: ok.
( 4m 27s ) Dell Advisor - Rohan: What kind of connection are we looking for here
( 4m 58s ) gunjan: I am looking to connect my laptop which has type C thunderbol 3
( 5m 19s ) gunjan: Will the Type-C on the monitor support thunderbolt 3
( 6m 25s ) Dell Advisor - Rohan: Yes, The Type C will support Thunderbolt
( 7m 23s ) gunjan: Also as I see with the monitor no Type C will be part of the package
( 8m 7s ) gunjan: Can you please let me know which cable will be compatible with USB 3.2 Gen1 Type-C downstream to get connect to the laptop which has thunderbolt 3 port
( 9m 34s ) Dell Advisor - Rohan: Alright, So you can go ahead with any Type C cable since it will also support Thunderbolt Port. However, We suggest you to go to the local electronic shop like Bajaj Electronics or Croma.
( 10m 17s ) Dell Advisor - Rohan: There you will find good quality ones with more options available
( 10m 24s ) gunjan: ok
( 11m 27s ) gunjan: So any Type-C to Type-C connector cable should be able to help
( 12m 28s ) Dell Advisor - Rohan: That is correct
( 12m 44s ) Dell Advisor - Rohan: I would suggest you to stick to a Thunderbolt-Thunderbolt cable since the port layout would be the same
( 13m 0s ) gunjan: ok. Thanks for the info

Appreciate If you could guide me the next step to address this issue with Dell.

Thanks

@dageezerus​ 

As per the sales team executive, they confirmed that I only need USB 3.2 Gen 2 Type-C to Type-C cable (compatible with thubderbolt3). No other connecter is needed.

And after this confirmation, I had purchased this monitor.

The manual for the monitor states that the USB-C port is downstream only (i.e., output only).  It's not going to work as an input (upstream).

See if you can get the port numbered 7 in the manual (the upstream port) to work if you use a USB-C to USB-A cable -- it's not stated as to whether that USB-A port is video enabled, but if the setup is to work, you need to connect the monitor upstream of any source (notebook computer).

I suspect the USB-C port on the monitor is for daisy chaining another monitor to this one.

Alas, the sales team executive was incorrect. 

Dell P2725H Monitor User’s Guide Page 53 shows the three options for video input into the P2725H display.

• DisplayPort, 
• HDMI
• VGA

To use the USB Type-C computer output, you will need a cable like the one I suggested.

Dell 27 Inch IPS Display Monitor - P2725H | Dell USA

Note the specifications indicate 1x USB 3.2 Gen1 Type-C downstream with up to 15W PD (data only)

#Iwork4Dell

No, no, do not post any private information on this public forum.  When I responded to your question, I provided reference information from technical specifications in User Guide.  That also supports your finding when connecting to a laptop, there was no video as expected.

In the transcript, your questions were referred to downstream port with data only.  A thunderbolt port can carry video, data, and power.  Therefore, the question could be answered as it is compatible with data from a thunderbolt connection.  You should have asked if the USB-C on the monitor support video display from a thunderbolt port, then the answer would be different.

Anyway, I only could assist to confirm that your connection with no display is normal behavior as the downstream port can support data transfer from portable drive or USB peripherals.  As for pre-purchase questions, if that was a misunderstanding and you are not happy with the purchase, you can choose to return the product while it is still within eligible period.

Then, get a different monitor with USB-C that can support video, data, and power delivery.  Otherwise, use HDMI or DisplayPort for video, use USB upstream connection to make use of downstream ports, and use the laptop charger to power the device separately.

For the purpose of this thread topic and for others whom following your thread, you can choose to mark any of my helpful post as accepted answer to your query.

@Chino de Oro​ 
Thanks for your support.

@dageezerus​ Thanks a lot..!!