HP ZBook Studio G8 + USB-C Dockingstation G5 - Dual 4k Monitor resolution issue

[nybörjare]

Hi guys,

my setup

Laptop: HP ZBook Studio G8 | NVIDIA RTX A3000 & Intel UHD Graphics | 3840 x 2160 4k 120 Hz
Docking station: HP USB-C Docking Station G5
Monitors: 2x HP E27k G5 4k 3840 x 2160 60 Hz (both bought May 2024 / both connected with 16k DisplayPort cable)

The problem
Unfortunately, I am not able to operate both monitors with a resolution of 3840 x 2160 60Hz or 30Hz via the docking station. When I turn them on, one monitor is displayed at 3840 x 2160 30Hz and the second monitor at 1920 x 1080 60 Hz and i cannot set the resolution of the second monitor higher. Unfortunately, switching one cable to HDMI didn't help either. If I connect both monitors directly to the laptop via USB-C, I can run them at 3840 x 2160 60Hz. Is it somehow possible to achive the same result using the docking station?

Thanks for any advice!

[banhien]

@nybörjare 

The specs of your machine is

          https://support.hp.com/au-en/document/ish_4225460-4216961-16

And the dock supports

        

Please check a NOTE from its specs.

I highlighted my test using the G5 dock  with few different machines from HP's, Dell's and Lenovo few years ago.

Regards.

[nybörjare]

Hello Banhien,

thanks for your reply. If I understand you correctly, the problem seems to be with the docking station. What surprises me, however, is that I connected an HP ZBook Fury 17.3 G8 i7-11850H, 2 x 16GB (32GB), 512GB NVMe SSD, RTX A3000 to the docking station for testing purposes and discovered that I could use both monitors with a resolution of 3840x2160. How can that be?

[banhien]

@nybörjare 

As mentioned on my previous reply, one unknown factor : what is the DP version of the USB-C port. From the table, you can see few different results.

Regards.