PS4 display wonky - negative colours

We were trying to use our PS4, and there’s something odd with the display.

All the colours are reversed - it’s like a colour negative.

Any idea how to fix it? Tried rebooting and that didn’t do anything.

Are you sure it’s the PS4? It could be the TV it’s connected to, or the cable. How is it connected to the TV - HDMI? Five-cable?

Try attaching it to a different port on the TV, if possible, to rule out the possibility that there’s a problem with the port. Try switching cables as well, if you can.

Thanks. Will try fidgetting with the cables.

Try turning HDR off if it is on in the game you are playing.