HP Envy 17-u275cl - USB C port listed as supporting DP Alt Mode - Does this work?

[ntloser]

A long while back I wrote about a problem displaying video over the USB C port. The specs for my laptop are STILL listed as supporting this. Does anyone know if this works and if so confirm which adapter should be used. 

[banhien]

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@ntloser wrote:

A long while back I wrote about a problem displaying video over the USB C port. The specs for my laptop are STILL listed as supporting this.

@ntloser 

Its specs

         https://support.hp.com/au-en/document/c05806272

It has 1 USB 3.1 Type-C™ Gen 1 (Data Transfer up to 5 Gb/s, DP1.2, HP Sleep and Charge) port. Yes you can connect it to an USB-C monitor or using USB-C to DP adapter.

Regards.

[ntloser]

Hello,

Thank you so much for your reply. I tried a couple of different adapters and none of them worked. Eventually someone from HP contacted me via telephone and we got nowhere. The person I spoke with as well as a rep in these forums explained that it is not possible since it is not a Thunderbolt port. I pointed out the very spec you highlighted.

Some of this may be in my post history but I am afraid to look. This all took place back in 2018

Some of the adaptors I've tried included 

https://www.amazon.com/gp/product/B07H5GWBQF/

AND

https://www.amazon.com/gp/product/B07HVQQPYK/

Do you know which adaptor works. I am looking to get 4k 60hz - supported by DP 1.2.

Also, something interesting I found in my older posts. 

The specs on the website say it supports it

https://support.hp.com/us-en/document/c05806272

However... This spec sheet says it doesn't

https://pcb.itcs.hp.com/dc/api/spec-sheet/us-en/18162285/pdf/2EW64UA.pdf

^^^ The above 2 links no longer work but they did at one time. 


I remember there was a reason I was still confused to see this model listed as supporting DP Alt mode. 

[ntloser]

Do you know exactly which adapter works?