I recently added a 24" AOC monitor to use as a secondary monitor. I plugged it directly into the HDMI (my other monitor uses the Thunderbolt). I've adjusted the settings in System Preferences > Displays and set the resolution to match the monitor's resolution. I've tried switching ports (using a USB-C to HDMI) and yet that does not work. Any solution to get this "Input Not Support" watermark from roaming my screen?