Display keeps flicking on and off


I just got a raspberry Pi 4 Media centre kit, and have plugged it in to an AV reciever, then into a TV.

Every five seconds or so, the display goes black, or blue.

I have tried restarting many times, and have plugged/unplugged the device in to make sure it is seated correctly. I have also gone to the display config and tried several options on there.

The result is always the same.

Can someone please help me?


Can anyone help me please?

Hi Bruce,
Could you please include:

  • What AV receiver was used
  • Whether it works on a different display
  • if a different cable has been tested with