Kernel module installed but Mini Recorder not seen (Ubuntu)

I'm trying to install/configure my system for OBS but I'm not seeing the device. 'BlackmagicDesktopVideoSetup', for instance, says that there's no devices.

However 'lspci' shows the device

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bgiles@eris:/tarballs/video/Blackmagic_Desktop_Video_Linux_11.5$ sudo lspci
02:00.0 Multimedia video controller: Blackmagic Design DeckLink Mini Recorder 4K

and both 'blackmagic' and 'blackmagic-io' are successfully installed

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bgiles@eris:~$ sudo dkms status -m blackmagic -k `uname -r`
blackmagic, 11.5a34, 5.3.0-42-generic, x86_64: installed

Oddly an 'lsmod | grep black' shows no matches.

This is an Ubuntu 19.10 system running the latest kernel

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bgiles@eris:~$ uname -a
Linux eris 5.3.0-42-generic #34-Ubuntu SMP Fri Feb 28 05:49:40 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

and version 11.5.

The kernel sees these devices

bgiles@eris:/dev$ cat /proc/devices
Character devices:
1 mem
4 /dev/vc/0
4 tty
4 ttyS
5 /dev/tty
5 /dev/console
5 /dev/ptmx
5 ttyprintk
6 lp
7 vcs
10 misc
13 input
21 sg
29 fb
89 i2c
99 ppdev
108 ppp
116 alsa
128 ptm
136 pts
180 usb
189 usb_device
204 ttyMAX
216 rfcomm
226 drm
238 media
239 mei
240 hidraw
241 aux
242 nvme
243 ttyDBC
244 bsg
245 watchdog
246 ptp
247 pps
248 cec
249 rtc
250 dax
251 dimmctl
252 ndctl
253 tpm
254 gpiochi

I tried running the app as root (shudder) but same effect. I also checked if a group was added and my user account needs to be added to that account but didn't see any new groups.

If the hardware matters it's a Dell 7050 (iirc) with 64 GB.