On Tue, Jul 27, 2021 at 04:43:35PM +1000, Eyal Lebedinsky wrote: > Seeing the confidence of the reply I decided to do more testing. > - booting the old kernel did not fix it. > - unplugging and re-plugging the devices did not help. > > I then crawled under the table and followed the large cables bundle to find that I should have > trusted my instruments (the USB system). > > While the correct cable was plugged into the correct socket, the far end used an extension which > *was* plugged into the wrong thing. I then remembered that at one time the cable was pulled off > accidentally and quickly re-attached... > > In short, I am stupid and apology for the noise. It happens to the best of us. Don't worry about it. ;-) Alan Stern