Laptop not recognizing monitor

[VIaBS]

I'm hoping someone can help.  I have an HP Envy x360 laptop that's only 6 months old and I just bought an external 27" LG monitor to connect to it so I can have a larger screen and dual monitors.  My laptop won't detect or recognize the monitor.  

I've gone through all of the previous postings that had similar issues and none of the suggestions have worked.  The monitor has the same hi-res output that is compatible with the laptop's output; the power cords all work; have tried the HDMI cable in both ports on the monitor (it has 2); HDMI cable works fine on a different monitor connected to a different laptop; have tried to update drivers (BIOS, graphics driver); have tried to run diagnostics, but no issues come up.  It simply does not recognize that there is an external monitor connected.  I have a Belkin multi-port docking station and have tied connecting the HDMI to it and the laptop directly - neither works.  

Any guidance is greatly appreciated.  I need some specific instructions on how to get this resolved and/or figure out if there is a hardware or software issue with my laptop.  Thanks!

[Echo_Lake]

@VIaBS

Thank you for posting on HP Support Community.

Don't worry as I'll be glad to help,

Your computer might not immediately recognize the second display. If not, then navigate to the display settings:

• Press the “Windows” key.
• Click the “Settings” button (the gear icon).
• Click the “Display” tab.

Now you can view your computer’s display settings. You can manage nearly all of the display characteristics on this page.

The first thing you’ll want to do is make sure that your displays are arranged in the correct way. Both displays are represented by icons that are labelled either “1” or “2.”
 

Pro tip: If your computer didn’t automatically detect your second monitor, double-check to make sure that everything’s plugged in correctly, and click the “Detect” button.
 

Each monitor is assigned a number, and you’ll want to make sure that the arrangement of the icons matches the way your monitors are arranged on your desktop.

If Display 1 is on the left and Display 2 is on the right, you’ll want to make sure that the Display 1 icon is also on the left and the Display 2 icon is on the right. If the icons don’t match your arrangement, you can click and drag them to their correct position.
 

Windows 10 is a pretty smart operating system. If your monitors are different sizes, Windows 10 will make the display icons proportionally sized. Otherwise, you can click the “Identify” button and Windows 10 will denote the display number on each monitor.

Hope this helps! Keep me posted for further assistance.
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