UltraStudio mini monitor + Ubuntu 17.04

Hi,

We are trying to use the Ultrastudio mini monitor with Ubuntu 17.04. However, after installation of the software "Desktop Video 10.9.7", it is impossible to detect our device with the command :
- BlackmagicFirmwareUpdater status

(nothing appear on the screen)

We are using the following connection :
- Mini monitor + thunderbolt 2 cable + Apple thunderbolt to USB-C adaptater

We alse tested with a Mac computer with success (Mini monitor is detected)

Any ideas how to fix the problem ?

Thanks in advance !