My usb ports are stuck in 1.0 mode, i cant get them to work in 2.0 mode to get my devices to work. i tried a fresh install and rebootng many times, the mouse is slow and jumpy and transfers take a while.
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disable legacy usb from the bios and if you dont have usb 3 also disable backwards compatibility mode in the usb settings in bios.

techvish81
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dmesg
command (instructions here) – ish Jun 22 '12 at 05:34