Intel DQ77KB video signall intermittent loss

[Yigal]

Hi,

This is a day one issue.
I have pfsense running on intel DQ77KB. If I disconnect the the video(regardless of the port, including usb video adopters) the video signal is loss.
the only way to restore is a system restart.
I couldn't find anything in this forum or out side it so im seeking help of what to do next.

Thanks