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USB display adapter with linux/ubuntu drivers?

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linux-howto

http://askubuntu.com – I want to use my external monitor's resolution fully (2560x1440) with a USB display adapter for my laptop. I have one with Windows drivers, are there any adapter with linux / Ubuntu drivers that can give me full resolution? I am thinking of something like my current USB to DisplayPort adapter. HDMI only gives 1920x1200 (am using arandr to achieve this easily), and my laptop haven't got displayport. But I know that the graphic card can deliver 2560x1440 digitally or through an USB adapter. (HowTos)