Hi Folks,

 I have a Surface Pro and a monitor plugged into it using the Microsoft HDMI adaptor (via display port).  It worked fine on windows 8.1 but now under windows 10 it is disabled.  The monitor reports no signal on the display cable and windows reports no monitor connected.

I have seen many posts for people reporting it, but have not found an official response from Microsoft so I don't know if it will be fixed in a later update or if there is a KB for it.

I have the latest Microsoft (Intel) drivers for the unit (dated 15/7/2015).  I've tried the drivers from the Intel site, but they fail to install (but are effectively the same according to the driver info).