cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
AaronRM
Fanfold Paper
Posts: 3
Registered: ‎06-28-2019
Location: US
Views: 145
Message 1 of 2

Dual 4k UHD with T480s + ThinkPad Hybrid USB-C with USB-A Dock

I just obtained new LG 4K displays. I have them hooked up to a ThinkPad Hybrid USB-C with USB-A Dock via DisplayPort. The dock is connected to a T480s (20L7) via USB-C. I am running the monitors at 3840x2160 @ 60Hz.

 

The performance is a bit laggy at times...it almost feels like I'm pushing the limits of what the laptop/dock can support. I have the latest drivers and firmware installed for both the laptop (via Lenovo's System Update utility) and dock.

 

Even doing operations like Windows + TAB cause the WUDFHost.exe process (Windows Driver Foundation - User-mode Driver Framework Host Process) to spike up to 10% CPU / 100 % GPU. 

 

Anyone else running with a similar setup? Any suggestions (short of getting new hardware) that I can do to boost the performance with my existing setup?

Social Support Agent
Social Support Agent
Posts: 1,122
Registered: ‎08-02-2018
Location: US
Views: 54
Message 2 of 2

Re: Dual 4k UHD with T480s + ThinkPad Hybrid USB-C with USB-A Dock

Hi AaronRM! The laptop can only support up to WQHD (2560x1440) resolution as per: https://psref.lenovo.com/Product/ThinkPad/ThinkPad_T480s. The solution to this is to lower down the resolution of the TV for it to work properly.



Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

Follow us @LenovoSupport on Facebook and Twitter!

Check out current deals!


Shop current deals

Top Kudoed Authors