1. Try reseating the HDMI cable.
2. Try changing the video resolution under settings. If it's at 1080p, try 1080i. If it's at 1080i, try 720p.
3. Try replacing the HDMI cable. It's not necessary to buy an expensive cable. Any decent quality name brand cable should work well. If you cannot find one locally, try Amazon. The "AmazonBasics High-Speed HDMI Cable" should be good enough. The "BlueRigger High Speed HDMI Cable" is a higher quality cable that isn't too expensive. The "Rankie HDMI Cable" looks like the best deal in a 6' cable and is highly rated.
Last edited by 57; 2018-11-10 at 11:36 AM.
Reason: Changed "but" to "buy"