No display through HDMI even though monitor and Laptop recognize eachother

[Xflowers]

My laptop and external AOC monitor recognize each other  when I am plugged up through the HdMI but no video shows. I updated all the drivers necessary, the graphics card software is up to date. In the Nvidia control panel application, the laptop itself does not show up in the “set up multiple displays”  but the monitor shows as the only monitor so I can’t change anything. Almost pretty sure this started after I started using my Laptop for gaming. Never changed any settings either. 

[Riddle_Decipher]

@Xflowers Due to the current global COVID-19 situation, we're seeing an influx of customers coming in for support and we appreciate your patience.

That said, Here's what you need to do, to identify the issue and resolve it accordingly:

• If not done already, check if it works fine on an alternate/external monitor to identify if it's either a hardware or a software issue:
  • If it works fine on the Alternate monitor, it's a hardware issue with the LCD on the laptop
  • However, if it doesn't work on it either, this could be a motherboard issue.
• Update the BIOS, Chipset and Graphics card: click here to find and install the same, before concluding a motherboard failure.

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