[SOLVED] No video output via thunderbolt dock

[tombraiderfanatic]

Can anyone help please?

I have a Gigabyte Aorus mobo with a Gigabyte Titan ridge thunderbolt card so I can connect to my Terrmaster D5.
I am currently using a graphics card to output to 2 monitors.

When lockdown ends, my wife and I are going to the office 3 days a week and at home for 2 days a week. We would like to arrange to not be at home on the same days and then share the deskspace at my PC.
She would like to use my monitors/mouse/keyboard and be able to connect to the internet.
Currently, she has a thunderbolt dock that she connects to her laptop which then connects to her monitors, mouse, keyboard and ethernet.

So I had the idea of trying to connect my PC to her thunderbolt dock to see if I could drive the monitors, mouse, keyboard, and network.
I succeed on the last three but have so far not been able to get the PC to recognize the monitors.
If I connect her laptop to the dock and then to my monitors it works fine.
So it looks like the connection from my graphics card via a DP to Mini-DP cable to the Thunderbolt card is not sending the video signal to the dock via the thunderbolt cable.
Am I doing something wrong?
Is this theoretically possible?

Hoping for some words of wisdom...

 

[kerberos_20]

from manuals:
Due to hardware limitations, the Display Port connector, Thunderbolt™ 3 connector 1, and Thunderbolt™ 3 connector 2 require signal input from external devices and support up to two display outputs at a time.

which can be translated into:
for displayport capability u have to use DP to mini DP cable to connect your GPU with your thunderbolt card

connect one end of cable to GPU, second end to TB card

 

[tombraiderfanatic]

from manuals:
Due to hardware limitations, the Display Port connector, Thunderbolt™ 3 connector 1, and Thunderbolt™ 3 connector 2 require signal input from external devices and support up to two display outputs at a time.

which can be translated into:
for displayport capability u have to use DP to mini DP cable to connect your GPU with your thunderbolt card

connect one end of cable to GPU, second end to TB card

Yes, that is exactly what I have done, sorry I thought I had explained that in my post.

 

[hang-the-9]

Contact the maker of the dock and see what they say. There are often small issues with compatibility between devices if used by a different brand or use. For example using Dell dock with a Lenovo laptop, both may be the exact same spec but not all functions work.

 

[tombraiderfanatic]

I have actually solved it now. It turns out the I had completely forgotten that the cable going to my monitor from the Thb dock was DP one end and HDMI the other end, once I switched it out for a DP - DP cable it was happy.
Sorry to have trouble you guys with this one!