When I try to connect a USB 3.0 device in Ubuntu 12.10 (ASUS K55VD, kernel 3.5.0-19-generic #30-Ubuntu SMP), the system says

[   74.747832] hub 3-0:1.0: unable to enumerate USB device on port 1
[   74.931957] usb 4-1: new SuperSpeed USB device number 2 using xhci_hcd
[   74.949390] usb 4-1: New USB device found, idVendor=05e3, idProduct=0731
[   74.949396] usb 4-1: New USB device strings: Mfr=0, Product=1, SerialNumber=2
[   74.949400] usb 4-1: Product: USB Storage
[   74.949403] usb 4-1: SerialNumber: 0000000000000033
[   75.033327] usbcore: registered new interface driver uas
[   75.038548] Initializing USB Mass Storage driver...
[   75.038651] scsi7 : usb-storage 4-1:1.0
[   75.038700] usbcore: registered new interface driver usb-storage
[   75.038701] USB Mass Storage support registered.

but it does not recognize the device, and the disks applications (gparted, nautilus) act as if nothing had been connected. I have checked other questions, but either they have no answers or they told about previous Ubuntu version with 3.0.x kernels.

A USB 2.0 device will work in the USB 3.0 ports. A USB 3.0 device will work (at USB 2.0 speeds) in the USB 2.0 ports. The problem, as I wrote, is between USB 3.0 devices and USB 3.0 ports.

I have my USB 3.0 ports configured without legacy support via the BIOS (the way they should be, I suppose). But I also have tried to configure them with XHCI Preboot mode disabled.

Have any one solved a similar problem? Thanks in advance.