On 11.01.2016 14:37, Oliver Neukum wrote: >> Different example is a RS232 converter which works perfectly fine on >> all USB >> 2.0 ports. But when I plug it in (4.3.3 kernel): > > If all devices as opposed to a specific device fail, it is an unrelated > issue. By all means report it on the list, but in a separate thread. But actually that's just what I was reporting initially ("USB 3.0 is practically unusable on my system", "owever, since kernel-space devices also have problems (like RS232 converters) on USB 3.0 ports [...]"). Steve only thought that his problem was related, unfortunately, this doesn't seem to be the case :-( I probably should have been clearer about the problem, though. So what information would be helpful in my case (no USB 3.0 ports working at all under Linux, but all work perfectly with Windows)? Best regards, Johannes -- 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