Help required

this is possibly the root cause

 

Just found this too, a setting that may prevent it happening in the future

 

The HDMI ports are on the main board as well so not cheap to replace

 

Thanks Ozzy. It’s wonderful that there is so much information out there, I just needed someone else to find it for me (as everyone will have guessed, I’m not computer wise). Better than I was though. The switching off and on has got everything working again. Temporary or long term remains to be seen. However I’m saving all the tips just in case.

 

Confucius he says, smart man, don't need to know how to fix it, just where to go to get it fixed!