The PS4 game picture cannot be output as HDR signals.

Try the following.

• For 70E_72E, 67E_69E, 72F, 70F_73F or X70G series:
  Update the PS4 console to the latest firmware via network.
• For other models:
  1. Press the HOME button on the remote control.
  2. Select Settings.
  3. Select System Settings.
  4. Select Set-up.
  5. Select AV Set-up.
  6. Select HDMI signal format.
  7. Select Enhanced then restart the PS4 equipment.

  If the issue does not improve even after performing above, update the PS4 console to the latest firmware via network.