Two HDMI displays are slow using a itec CADUAL4KDOCK connceted by 3.0 usb-c on my Lenovo with Ubuntu 26.04

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I have connected my Lenovo laptop using UBUNTU 26.04 to my docking station I-TEC CADUAL4KDOCK by 3.0 usb-c. The docking station is connected by HDMI to two diplay: a samsung electronics 24" and a SMART TV LG 24". I have installed the last displaylink driver on the pc (version 6.3.0-48). Unfortunately, I notice a certain slowing especially on the Samsung display and colour are not brilliant. The…

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