On Tue, Feb 19, 2019 at 08:00:11PM +0530, Subhashini Rao Beerisetty wrote: > Hi All, > > [ Please keep me in CC as I'm not subscribed to the list] > > > I’m using an Ubuntu 16.04.4 LTS PC and when I connect an USB device to > my Ubuntu PC, I see the below mentioned messages in dmesg. That's a very old kernel version. Please contact the distro for support for this, they are the only ones that can help you. If you still have these issues when using the 4.20 kernel release, we will be glad to help. thanks, greg k-h