Comment 10 for bug 1444682

The Unknown strings come from software-properties so this probably doesn't need fixing in ubuntu-drivers-common.

1359 widget = Gtk.Label.new("{}: {}".format(self.devices[device].get('vendor', _('Unknown')), self.devices[device].get('model', _('Unknown'))))

The devices detected are the following:

ipdb> self.devices
{'cpu-microcode.py': {'drivers': {'intel-microcode': {'from_distro': True, 'free': False}}}}

Having said that I don't know how software-properties would determine the right vendor and device. Additionally, I think all the devices here will have the same problem.

 $ ls /usr/share/ubuntu-drivers-common/detect/
arm-gles.py cpu-microcode.py open-vm-dkms.py sl-modem.py

So maybe those should return more than just the package to use.