@Joseph Salisbury,
It's working now. Previously I had uninstalled, but not purged, the 4.4.0-108 kernel. I purged the remains and reinstalled 4.4.0-109, everything appears to be OK now running the new kernel.
@Joseph Salisbury,
It's working now. Previously I had uninstalled, but not purged, the 4.4.0-108 kernel. I purged the remains and reinstalled 4.4.0-109, everything appears to be OK now running the new kernel.