I have a Dell Precision T3600 with firepro v5900 and 3 monitors (1DVI and 2 display hdmi to dvi).
Everything was working ok on windows 7.
I've done the update to windows 10 yesterday on my 3rd monitor doesn't work anymore !
The monitor is detected in Catalyst but I can't activate it ! (The same problem with windows inerface config.)
Thanks for your help !