Hello Greg, > Does this happen on all systems you try these devices in, or only on one > type of system? I did test only 2 computers, problem is on both of them. I will perform some more tests on several other computers (laptops and desktop). > And can you try a more "modern" kernel version? Lots of xhci changes > and fixes have happened in the years since the kernels you are testing > were released. We far prefer to use LTS-kernels, which is why we're running kernels 4.1.35 and 4.4.39. Preparing a computer with kernels 4.8.15 and 4.9.0 (last available on Gentoo). I'll keep you posted on the results. -- Pierre-Yves Bonnetain-Nesterenko -- 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