There are several monitors on the market with such resolution Dell U4919DW, Philips 499P9H, LG 49WL95C-W and Samsung CRG9. At least for Philips 499P9H I'm not able set this resolution with i-tec device on Ubuntu. https://i-tec.cz/de/produkt/u3dual4kdp-3/87 votes
Currently investigating feasibility of 5120×1440 via single cable on DisplayLink DL-6000 series product
Dual Displays on Android App4 votes
DisplayLink can already support mulitple USB displays connected on Android with the DisplayLink desktop app: https://play.google.com/store/apps/details?id=com.displaylink.desktop.demo&hl=en_GB
However Android does not have a concept of multiple displays like other OSes. As of Android Pie, a single app can use more than one screen, eg powerpoint uses the phone screen to show presenter notes, and the extended screen shows the presentation.
For DisplayLink to properly support dual displays on Android, like other OSes, changes would be needed to Android to support multiple displays.
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