I've tried using USB keyboards on two of my machines and they don't bring up the BIOS screen when I press the delete key as the motherboard posts. (This is the first time I've tried USB keyboards on any of my systems.) It this a common "feature" of using them?
The keyboards work after the machines have booted into Fedora. The motherboards are both Gigabyte brand. A GA-K8N with FC 15 and a MA790GPT-UDH3 with FC 12. In their BIOS settings, both motherboards have all the features related to USB support enabled.