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I've got Plymouth disabled so I see anything that happens at bootup. I noticed the following: - When plugging my USB mouse, it says something like "New full-speed USB device connected" - When plugging the gamepad I got on christmas , it's saying "low-speed USB device" Can you confirm that full-speed means USB 2.0 and low-speed means USB 1.1 (I guess USB 3.0 would be super-speed, don't have SS-USB ports)

I'm asking because the packaging of the gamepad tells it's USB 2.0. Note: I can't check on lsusb, because it tells me "Failed to enumerate..." and it's not working both on Ubuntu and on Windows. I guess it came broken...

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up vote 1 down vote accepted

Full-speed and low-speed does not mean that the device has a USB 1.1 or 2.0 interface. An USB 2.0 device can also use low-speed data rate. Low-speed is about 1,5 Mbit/s and I think for a gamepad there is no more speed necessary.

You kernel seems to recognize the device, but failed to enumerate is a bad sign. It can mean that the device is broken... But first, you can try to disable the ehci host-controller by the following terminal commands:

cd /sys/bus/pci/drivers/ehci_hcd/
sudo sh -c 'find ./ -name "0000:00:*" -print| sed "s/\.\///">unbind'

Then plug in the device again.

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Thanks for your explanation. However the device is still not working. I'ts not even running on Windows which it was designed for. – the_Seppi Dec 26 '13 at 19:21

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