I have this intel NUC mentioned in the subject coneected to an A/V receiver with hdmi and then from there to the television with hdmi.
Most of the time the picture works just fine. Sometimes though the screen will be black and say "weak or no signal". The strange thing is that if I literally tap on the top of the case of the intel NUC the picture is restored.
What is causing this? It is a common flaw with this model NUC?
This is weird but I will recommend to verify if the problem could also be a loose HDMI cable or even the HDMI port.
If the problem persists I will recommend to contact http://www.intel.com/p/en_US/support/contactsupport if you are in the USA for any warranty issues.