If your PS4 is having trouble outputting video through its HDMI port, there are a few things you can do to try and fix the issue. First, make sure that the HDMI cable is properly plugged into both the PS4 and the TV. If you’re using an older HDMI cable, it may not be up to par with newer models and could be causing problems. Next, try swapping out the PS4’s HDMI port. If that doesn’t work, you may need to replace the PS4’s motherboard. ..