On Tue, 1 Jan 2019, Marko Vojinovic wrote:
Any suggestions?
We hit this symptom with some machines due to a USB bug:
https://bugzilla.kernel.org/show_bug.cgi?id=66171
kernel arg xhci_hcd.quirks=270336 fixed it for us.
Tracking these problems down often ends up being a fairly painful bisect.
jh