Running an up-to-date F27, KDE on a Dell Latitude 3440.

Seems my laptop's camera stopped working recently. I'm pretty sure it was fine when I re-installed everything (including Cheese) maybe two months ago, but now Cheese just says "No Device Found". From the command line, I get:
** Message: cheese-application.vala:211: Error during camera setup: No device found

(cheese:3374): cheese-CRITICAL **: cheese_camera_device_get_name: assertion 'CHEESE_IS_CAMERA_DEVICE (device)' failed
Much to my surprise, System Settings only has information about mountable cameras/hardware. I'm at a bit of a loss as to how to troubleshoot this problem, so any help or info is appreciated.