I'm not running Windows sorry, you have the latest BIOS? New one came out today for our models. Here is a similar thread that may help u out. https://intel-communities.jive-mobile.com/#jive-discussion?content=%2Fapi%2Fcore%2Fv2%2Fdiscussions%2F46788
The Intel engineering department is aware of this thread and they are currently working to get this issue resolved. I still do not have an estimate time of resolution but you can keep checking this post for updates:
There is a new graphics driver that we've installed here that fixes the headless issue in our testing on the 'WYK' NUCs. You can get it here:
Please give this a try.
I loaded the driver, and also made sure the BIOS was updated, but had no success. The symptons have changed where now, if I remote in with the HDMI connected, I can disconnect and the session will stay active with video. However, once I reboot, I receive no video remotely until I reconnect the HDMI.
I have no doubt that you have read the other threads on this issue but, just in case you didn't......
We have over 200 headless servers of this category ie NUC, Mac Mini and now Gigabyte Brix. We have always had problems with Intel's imbedded HD graphics offerings, the first being the HD3000 (including the Mac Mini's). While I would like to think that this is a driver problem, I'm starting to think that the hardware was never designed for headless activity. Very early on we discovered that adding a "VGA dongle" to either the HDMI or DP ports on these devices was a low cost, minimal effort solution to the problem.
I know that this is probably not what you wanted to hear but after many years with this problem, we simply decided to move on with this simple "fix" and make the most of the benefits of this small form factor. The best article I have seen on the building of a VGA Dongle is this one - The Personal Computer - VGA Dummy. All you need is to buy an HDMI to VGA (female) cable or DP to VGA (female) cable on eBay, buy a handful of 75ohm resistors and you are in business.
another suggestion for a HDMI dummy plug .... HEADLESS GHOST
Why did you develop the Headless Ghost?
I spend a lot of time working with computers that have no monitor attached to them and became frustrated at being forced to work in a VNC window the size of a postage stamp. After some searching, I found that lots of other people were running in to the same sort of issues - be it for plain old remote desktop, running specialist software on embedded computers which requires the presence of an OpenGL or Direct3D device, trying to get a Mac Mini or Intel NUC to behave itself as a media centre PC, or enabling lots of powerful GPUs for LiteCoin mining or Folding@Home. I found there wasn't a straightforward way to get around the issue - thus - the Headless Ghost was born.
The new graphics driver has been posted. It includes the fix for the black screen when accessing Intel NUCs remotely, if the NUC does not have a monitor attached. It’s available at https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=24473