Pavillion 15t with HP USB-C Dock G5

[pgramsey]

I just bought a Pavilion 15t with a USB-C Dock G5, direct from HP. When it all finally arrived I hooked it together (along with an HP monitor) and it all worked. I then used the computer standalone for about a week, while my desk got monopolized by working at home with a different computer. When I cleared all the other stuff out of the way and hooked the Pavillion back up to the dock 1. it won't connect video, and 2. it won't charge. It does still operate as a plain old USB hub (a very expensive one!). It will also connect properly to every other USB-C device in my house (from brands such as Dell, Samsung, and Lenovo) and work just fine, driving two monitors. I spent about two hours with tech support, and they finally got rid if me by telling me that this computer isn't compatible with this dock. Which doesn't really make much sense, especially since it worked once, and it works with everything else, from high end to low end.

I also can take this computer to another (very minimal) USB-C dock that's known to be good, and it doesn't work.

It will drive an external monitor through the computer's HDMI port, so the video works, it just doesn't work through the hub.

Is anyone else running this setup? Any thoughts on why this doesn't work anymore? My hope is that somewhere there's a setting that got inadvertently flipped, and I will be able to miraculously restore the original behavior. But if I was making bets it would be on some sort of infant mortality in the USB socket on the computer.

[banhien]

@pgramsey 

There are many generations and many models/products called Pavillion 15t. What is yours ? Please use the following instructions to find out the model/product of your machine:

     https://support.hp.com/us-en/document/c03754824

                 or

     https://support.hp.com/us-en/document/c00033108

Please do NOT post its Serial number (s/n).

Regards.

[pgramsey]

HP Pavillion 15t-cs300 CT0

product number 7ek02av

[pgramsey]

Hmm. No answer.