Windows 10: I have 1 Question? 1 Problem? 3 Monitors & 1 TV?

I don't know how to properly search with Bing or Google for this issue and anytime I do nothing comes up. I had ZERO issues until I recently started a subscription service with Microsoft 365 & now have more software etc. I have 3 monitors, and 1 TV hooked up to my custom-made PC. The issue is sometimes I could be doing nothing & on my phone & then all a sudden the four screens will do a zoom in then it zooms out mode to be honest it reminds me of a when on a phone or PC will take a screenshot? But when I searched this up

:)

 

No display on monitor when TV set as primary display

Issue solved

Removed DVI/HDMI cable from computer and monitor

Step 1: Check if the VGA monitor cable is defective.

1. Turn off computer
   
2. Connect the monitor VGA cable from the monitor to the VGA port on the computer
   
3. Turn on computer, VGA monitor cable is good.
   
   Step 2: Tun off computer
   

1. Connect HDMI Cable to HDMI port and TV
   
2. Turn on computer and TV, there is no monitor black screen
   
3. Click on the Windows logo, select the Settings icon , and then select
   
   System. Under Display there are two squares, labeled 1 and 2
   
   D Click on Advanced Display Settings:
   
   Display information: Display 1- Monitor Display 2 -TV
   
   E Right-click the Speakers icon in
   the taskbar, select Sound, click on Playback devices,
   
   
   a s tv screen with my brand shows
   AMD High Definition Audio Device ready.
   
   F. Problem solved
   
   
   
   Cause of the problem: Defective VGA port on the Syba VGA HD15+ 3.5 Audio to HDMI converter
   

 

Change monitor 2 to monitor 1 and make it stay.

I did as you suggested, but the problem was not resolved. Windows detects the monitors just fine, but I need to switch monitor 2 to be numbered monitor 1. The main diplay has not effect, as once monitor 1 is turned on monitor two looses display.

 

Monitor 1/2

Why is my first monitor showing up as monitor 1/2 while me second shows up as 3?