HP ZBook 15 G5 + Thundebolt 3 power delivery?

[manu_]

I get a HP ZBook 15 G5 (3AX06AV) with its latest BIOS version running Ubuntu 22.04.4 and a HP Thunderbolt 3 dock (aka TB3). I've checked in the BIOS settings for TB ports and everything looks fine.

So far, I've been able to connect an external VGA screen with success, I did not try other functionalities so far such as USB drive or audio device.

I'd expect that when powering the TB3 with a 230W HP power supply, the ZBook would be powered too, but it's not the case.

From what I can read here it think it should be working.

I've tried with 90W and 150W HP power supplies without success.

Anyone gets an idea what I should do to make it work, if possible?

[manu_]

Reference of the HP TB3 : HSTNN-CX01

[erico]

I recommend that you contact HP directly on this. 

You may need warranty support for your HP TB3.

[manu_]

So far, I could not find the way to contact the HP support for my products...

Both are second hand products I acquired recently.

I wonder if the 'Thunderbolt/AC power cable' I own might not be the cause. The one I get has, on one end, a usb-c plug and on the other end a double plug, like this one:

But I could see there exists a cable with both sides the big double plug. Is it the kind of cable I should use?

BTW, this big double plug needs to be plugged on which part? The TB3 or the laptop?

[erico]

The double plug is supposed to be plugged into the TB3 device.

I would go to a Big box store where both products  (ZBook and TB3) are sold and ask for a demonstration.

[manu_ · Accepted solution]

This is the kind of alternate cable I was speaking about... Found here.

[erico]

Is that the cable that was in the box with the Thunderbolt 3 dock?

[manu_]

Nope, as I wrote before, the one I get looks exactly like I showed on the 1st picture. I bought the TB3+cable second hand, and I don't know if it's the right one for my ZBook, since the TB3 gives no power to the computer when plugged as you showed.

[manu_]

Have a look to page 9 of the HP User Guide...

[erico]

Have you checked the security level settings?