My Logitech M350 USB mouse does not work with the latest kernel. Pointer doesn't move, buttons do not work. Bisected to commit dc948f8b384a516ac5c471eb9382959f838e02f4 (ACPI: scan: Defer device power initialization), which does not revert cleanly. Attached is output from dmesg, lsusb and lsmod, both for good and bad kernels. -- Hilsen Harald