-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Desktops
- Desktop Hardware and Upgrade Questions
- DisplayPort capabilites on HP's Thunderbolt 120W G2 dock

Create an account on the HP Community to personalize your profile and ask a question
11-10-2020 09:17 AM
Hello,
I've recently bought an HP Thunderbolt 120W G2 dock for my office so that I can hook up two monitors using displayport.
Just so we're clear, this is the dock: https://store.hp.com/us/en/pdp/hp-thunderbolt-dock-120w-g2.
The monitors I am trying to hook up are: https://www.acer.com/ac/en/GB/content/predator-model/UM.HX1EE.005
These monitors run at 1400p (2560x1440) as high as 144Hz, can be overclocked higher but that's not the case.
Now, the description of the dock mentions 4k @ 60Hz but will I be able to hook up both of these displays, running 1440p @ 144 Hz using the dock? Because so far I haven't been able.
These monitors have been used at 1440@144Hz before, but on a different PC. Cables are the same so we can scratch that possibility out.
I can put one to 144Hz but the other will be locked at 24Hz. So far I've managed to balance things out and run 1440p @ 85 Hz.
My question now becomes, is there a limitation of bandwith on the dock? Or is a matter of GPU, or perhaps drivers?
Many thanks,
Mihai
11-24-2020 10:40 AM
I reviewed your post and I understand that the docking station is not running 2 monitors at 2k resolution with 144Hz.
Don’t worry, I assure you I will try my best to get this sorted.
I recommend you refer to the below specifications of the docking station and it will give you a clear picture.
https://support.hp.com/us-en/product/hp-thunderbolt-dock/20075223/model/20075224/document/c05913756
Let me know how it goes and you have a great day!
P.S: Welcome to the HP Support Community 😊
If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!
Cheers!
Stay Home – Stay Safe
The_Fossette
I am an HP Employee
11-25-2020 09:53 AM
Hey The Fossette,
Thank for replying to my question, I wasn't sure I would get an answer but I remained hopeful 🙂
I've seen the product description and my scenario is this:
- monitors have 2560x1440 with 144Hz;
- monitors have DisplayPort v1.2;
- computer has Thunderbolt v3;
I know for sure that Thunderbolt v3 has the necessary bandwidth needed to run two monitors at 4096 x 2160 at 60 Hz, so running two monitors at 2560x1440 at 144Hz should technically work.
I only wanted to know if it's possible to achieve that with this dock (since there are docks that cannot). Because if so then my issue is elsewhere since I am only able to run both monitors at 2560x1440 by 85 Hz.
Thanks again!
Waiting for your answer,
Mihai
11-26-2020 09:35 AM
Yes, the docking station can run both the monitors at 2k. However, I am not sure about 144Hz.
If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!
Cheers!
Stay Home – Stay Safe
The_Fossette
I am an HP Employee