Ubuntu 16.04, rear USB ports not working

[G9xftw]

By rear ports I mean all those on the motherboard are not working. There is power in them as when I plugin a keyboard it lights up and then goes off. But wont type anything. I have a corsair 400r cabinet, only the front panel USB ports seem to be working, I can type and use my mouse. Same cannot be said about the rear ports. Appreciate any help!

 

[grmnlxndr]

Hi, did you check if it is a Bios Configuration? It seems very strange. Try to use the "chipset-USB" (try the 2.0 ones) in order to see if it is a problem with specific usb drivers.

Regards