Black screen after 1min > switch source > works 1 min then blacks out (x360)?

I've checked the HDMI cable and changed to another one, tried all other HDMI ports on the new tv, turned it off and on, removed and checked the power cable and tried multiple games in the 360. It worked fine just two weeks ago, now the screen turns black after 1 min. There is still sound, and I can move around in the xbox menu. Have tried changing resolution from 1080p to 1080i and 720p without success

Suggestions on how to fix or what could be wrong?

Submitted by reddisc1 | #Specialdealer Special Offer Online Shopping Store 2016