I spent some time in the chuck source trying to determine what Chuck is imbibing to think things like "HDA Intel PCH Line Out" and "PC Speaker" are keyboard devices but not my wireless keyboard. It does see my wireless mouse... on the same dongle! I am on devuan but I had a friend try it on debian and got similar results. I played around changing the value of CK_HID_DIR in util_hid.c. This has been the case since at least chuck-1.4.1.0. Any suggestions welcome. Just in case any one is interested.. I am using chuck as a midi performer. I compose in lilypond, and convert the midifile to csv and have chuck read that and send midi commands to fluidsynth etc. Its also listening and responding to OSC and MIDI messages. I play along on the piano. Chuck is my customized backup band! (i can share if any one is interested) The HID keyboard is for experimenting with real time control of things like the mix while I am playing. I'll assign keys to conductor commands as well. So I will be playing the piano keyboard and the computer keyboard at the same time.