On Sun, Feb 24, 2013 at 06:41:06PM -0500, Alan Stern wrote: > > Or can you think of any other "interesting" > > bits that could help to explain why the "Arrandale box [...] worked > > perfectly" whereas (all his) Ivy Bridge ones have problems. > > (Of course, I assume that it is always the same device, the > > same firmware and the same kernel drivers in all tests, right)? > > No, not really. Unless one is using USB-2 and the other USB-3 -- the > device might have a bug in its USB-3 firmware. This appears to be a high-speed device; at least, dmesg says "new high-speed USB device ..." when I plug it in. So for the firmware isn't it USB 2.0 even when plugged in a SuperSpeed port? > What happens if xhci-hcd is unloaded before the test? I'll test this, but I need to rebuild first. xhci-hcd is currently built-in to my kenel. Seth -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
