Comment 3 for bug 908560

Hmm okay - lspci when docked/not docked is the same. Trying lsusb.

Diff is:

$ diff lsusb_*
10,11d9
< Bus 001 Device 010: ID 413c:a502 Dell Computer Corp.
< Bus 001 Device 012: ID 0572:1412 Conexant Systems (Rockwell), Inc.

Probably a red herring - given the stack trace indicates ac notification.