@mruffell I had the aforementioned USB error almost constantly spamming my syslog. Since I have installed your kernel, it is gone completely. It was not affecting USB hub function in my case, however was quite annoying.
jeremy@730U3E:~$ uname -rv 5.4.0-42-generic #46+TEST1856608v20200805b1-Ubuntu SMP Tue Aug 4 21:56:57 UTC 202 Anyway I'm no-longer able to reproduce the problem so it seems you're onto something here. Have attached output of lshw for your reference. ** Attachment added: "lshw command output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856608/+attachment/5401270/+files/lshw.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1856608 Title: [Regression] usb usb2-port2: Cannot enable. Maybe the USB cable is bad? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856608/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs