Secure Boot
If the /dev/dvb folder is empty or not found, try to start driver manually. Launch in your console:
modprobe dvb-core
If you got error:
modprobe: ERROR: could not insert 'dvb_core': Required key not available
This error message is related to Secure Boot.
- Restart your system and enter the system's BIOS/UEFI settings.
- Navigate to the Secure Boot configuration page (the exact position varies based on the manufacturer and BIOS/UEFI version).
- Disable the Secure Boot option.
- Save changes and exit.
- Boot into Linux again and check adapters with
ls /dev/dvb