Does anybody have any suggestions as to how I could set about debugging
this? I'm seeing the same symptoms on a 4.19 kernel.
On 19/11/2018 15:27, Richard van der Hoff wrote:
I have a USB-3.1 dock, which I use for video (via displayport alt
mode) and power delivery, as well as keyboard, mouse, etc.
From time to time, all connectivity with the dock drops out for a few
seconds, before resetting itself. I'm trying to pin down if this is a
problem with the usb drivers, pci drivers, laptop hardware, or the
dock. It looks to me from the dmesg output like it could be a problem
at the PCI layer, but I am only speculating really.
Attached are the dmesg output during the problem, lsusb -v, and lspci
-v. They are all recorded with a 4.15.0 kernel; I've seen exactly the
same symptoms with a number of kernels between 4.8 and 4.15.
Advice appreciated!
