How to run 4k@60Hz on HP EliteBook 850 G5

[alogim]

I recently bought a 55" Samsung QN95A, which supports up to 4k@120Hz via HDMI 2.1. When I connect it to my laptop via the HDMI port, which is an HDMI 1.4b port (according to the specifications) I am offered to run the TV up to 4k@30Hz.

Is there any way to make it work at 4k@60 Hz either via:
- the Thunderbolt (USB Type-C connector) port or

- one of the two USB 3.1 Gen 1 ports?

Is there a not-too-expensive docking station or even an adapter which would allow me to achieve that? I have read several threads regarding other similar laptop models (such as the 840 G5), and it seems that there are adapters which sometimes work and sometimes do not. Could you suggest a docking station/adapter which will surely work for my need, if it exists? Thank you in advance.

[banhien]

@alogim 

Please read the following Guide to find a right one. I know you can get 60Hz with some docks but 120Hz is a question mark

                https://h20195.www2.hp.com/v2/GetDocument.aspx?docname=c04168358

Regards

[alogim]

I found this one (https://store.hp.com/ItalyStore/Merch/Product.aspx?id=5LX63AA&opt=ABB&sel=ACC) which seems to have an HDMI 2.0 port which outputs 4k@60Hz. However, my laptop is not listed in the compatible products: I am wondering why. Since it just connects to the USB-C port, shouldn't it be compatible with any laptop?

[BigNoj]

my 850 G5 uses a UHD 620 chipset that is definitly 4K 60Hz capable (but not 120Hz). I have just bought a simple Thunderbold to HDMI adapter (you need one 4K 60Hz capable of course) :

https://www.amazon.fr/gp/product/B0851BSBCB?pf_rd_r=TMWR3K95Q674K9G9ZKSS&pf_rd_p=ed1ef413-005c-474d-...

and it works perfectly well à 60Hz! (you need to manually select the 60Hz mode though). The HP dock will surely do it as well.