This change has a particular impact with Fedora 17 - the first open source distro to have automatic USB multiseat support - which shipped with Linux kernel 3.3. With USB graphics devices present, you can determine which driver (“udlfb” or “udl”) is getting loaded with lsmod: Unfortunately, the new udl DRM driver is still maturing, and can cause kernel panics. Eventually, this architecture will lead to a host of advantages, including GPU-accelerated 3D rendering to USB graphics adapters.īoth the new “udl”, and older “udlfb” framebuffer driver that we maintain are present in 3.4.0. David Airlie is doing this work, and the potential is very exciting. udl is a port of the udlfb driver to Linux’s DRM architecture. Linux kernel 3.4.0 is the first to include a new driver for DisplayLink-based USB 2.0 devices, called “udl”.
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