I have my Lenovo T460 connected via an Ultradock 90W to an Asus PB287Q via Displayport which according to (https://support.lenovo.com/gb/en/solutions/pd029622 Display and Video Output Configurations - Docking Stations ) should enable 3840x2160 at 60Hz, however I am only able to get 30Hz.
How can I get 60Hz display? Movement (e.g. mouse) is jerky at 30Hz. Using latest production drivers.
Thanks in advance,
According to https://www3.lenovo.com/us/en/laptops/thinkpad/thinkpad-t-series/ThinkPad-T460/p/22TP2TT4600 ThinkPad T460 | 14" Thin & Light Enterprise Ultrabook™ | Lenovo US your laptop has a mini-displayport.
Try a straight "mini-DP to DP port" cable (~ 5 Euros on ebay)