Black screen during Login
 

Hi,

I have an Intel NUC BXNUC10i7FNKN2 and a Targus DOCK310EUZ.
I connect my NUC to my Targus via an usb-c cable.
I've got the problem that during the boot phase and up until I entered my password to access my Linux Mint User Account, I don't have any video signal.
After I entered my password correctly both monitors receive proper signal.
Where does the problem come from ?

Thanks