Thanks for the info, I'll see what I can do to sort out my issues over here. Honestly I'm quite baffled that this is a TVH issue, since these kernel module messages looked to me like there is something strange going on at the hardware level...   EDIT: Turns out it is indeed a TVHeadend issue... As a quick workaround I installed the minisatip Docker image and let it handle /dev/dvb instead of TVHeadend, which now sees the DVB-C tuners through a networked SAT>IP layer provided by mini