BMD Decklink thunderbolt devices no longer work

[alatteri]

Ubuntu 25.10
BMD drivers 15.2

These worked fine previously, but I'm not sure when it broke.

/usr/lib/blackmagic/DesktopVideo$ ./DesktopVideoUpdateTool -l
Available Devices:
 * UltraStudio 4K Mini (2b4185eb-2bd2-b949-b676-943f8bf27a1d)

$ ./UltraGrid.AppImage -d decklink
UltraGrid 1.10+ (master rev 7cc5726 built Nov 14 2025 15:43:13)

Display device   : decklink
Capture device   : none
Audio capture    : none
Audio playback   : none
MTU              : 9000 B
Video compression: none
Audio codec      : PCM
Network protocol : UltraGrid RTP
Audio FEC        : none
Video FEC        : none

No DeckLink PCI card 0 found
Unable to open display device: decklink
Exit