On Thu, 15 Sep 2016, c400 wrote: > XHCI_NO_64BIT_SUPPORT > can't find such flag in my kernel config. May be you can help me to > find it in menuconfig tree? It's not there. Obviously you're not reading my email messages. I told you quite clearly: After unloading the xhci-pci and xhci-hcd modules: sudo modprobe xhci_hcd quirks=0x00800090 sudo modprobe xhci_pci Nobody here can help you if you don't pay attention to what we say. Alan Stern -- 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