Comment 36 for bug 1856608

I have an identical error message on Debian Bullseye after kernel upgrade:

- 5.8.0-3-amd64: works well "enough"
- 5.9.0-1-amd64: experiencing similar symptoms when Dell S2719DC monitor is connected.

By "similar symptoms", I mean:
- everything that is plugged to USB in the monitor works well.
- everything I've tried to plug into USB slot of the computer is sluggish to respond: looks like it's not receiving attention.
- the error message is the same: "usb usb2-port2: Cannot enable. Maybe the USB cable is bad?"

I will try to bisect the kernel at some point. However, the kernel versions seem to be quite different, so this seems like a similar, but different issue.