On Tue, Jul 23, 2019 at 04:27:51PM +0200, Frank Bergmann wrote: > > configuration of your devices and root hubs > > > I've got a brand new Dell XPX 15 9370 Laptop. No other USB hubs, devices, no > change to any configuration. I chose the model because it is supposed to be > the same that Linus Torvalds uses (well, XPS 13...) I too have the XPS 13, and it is very different from the XPX 15 last I looked, so I do not think you can compare the two, sorry. The debugging information that Alan asked for should help here. thanks, greg k-h