Last November we detailed the Wayland Display Server, which came about as a lightweight alternative to the X.Org Server and leveraged the latest Linux graphics technologies (primarily kernel mode-setting), and is designed elegantly with the rendering and compositing all being done by Wayland.
Read more »How Important Is The Wayland Display Server?
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A Root-less X Server Nears Reality
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One of the benefits of moving the different graphics hardware drivers over to using kernel mode-setting, an in-kernel GPU memory manager (whether it be GEM or TTM), and other newer X innovations is the possibility of now running the X Server without root privileges.
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