Last night I bought enough parts to build a second computer which should be able to run Qubes (at least v4.2).
Hopefully this will let me get to the bottom of this bizarre issue where hidraw devices were fully functional in Qubes 4.1 and seem to have certain packets filtered in #Qubes 4.2.
That is... IF I can get Qubes 4.1 to install on my current machine so I can do a side by side comparison. Hopfully I will be able to work on this on Saturday. #signet