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Newcomer
September 14, 2021
Question

Dual Monitors Issue

  • September 14, 2021
  • 8 replies
  • 49 views

I have been using Zoom for many months using by Windows 10 laptop and an external monitor with an HDMI connection. I have the "Use dual monitors" option setting checked in Zoom. When I share my presentation slides, the slides appear on my laptop and I can see the attendees on the external monitor. Works great!

 

Yesterday, I needed to do the same at a different location. Same laptop with the same settings, but instead of an external monitor, I connected a Smart TV. Now, when I share my presentation slides, the "Use dual monitors" option does not work. What I see on my laptop is the same as what I see on the smart TV. The only way I could make this work was to extend my laptop screen onto the Smart TV, and then manipulate the two screens to simulate what worked automatically with the external monitor. Doable, but not acceptable. What changes should I make so the connection with the Smart TV will work the same way it does with a dumb external monitor?

    8 replies

    Rupert
    Community Champion | Customer
    Community Champion | Customer
    September 14, 2021

    Hi @RhodyRich 

     

    Are you connecting to your Smart TV over an HDMI connection - or wireless?

     

    Regardless, before starting Zoom, but with your Smart TV connected, you will want to check in your Windows (not Zoom) Display Settings and ensure you have Extend Displays selected under multiple displays.

     

    Then ensure Zoom is closed - including the System Tray application.  Or restart your computer.

     

    Then re-open Zoom and go to your Zoom settings. You should now see the Use Dual Monitors option - and you should be able to select it.

     

    Hope this helps.

     

    Rupert

     

    RhodyRichAuthor
    Newcomer
    September 14, 2021

    I can and have used the extended display with my laptop and a Smart TV (wired and wireless). It approximates what I have using a dumb display, but it is not easy to setup, and moving the mouse from one display to the other is a major distraction, as is changing shared content.

     

    Looking for a more robust solution, that  works as quickly and easily as using a dumb monitor.

    Newcomer
    May 18, 2022

    Did you solved?

    RhodyRichAuthor
    Newcomer
    May 19, 2022

    No. Just accepted the way it is. May try it again in the future to see if the problem has been solved. Not worth my time and effort.

    Newcomer
    August 6, 2022

    Its happening same to me, one day the dual monitor just stopped from working. Even the box is checked, the window is not appearing.

    Newcomer
    October 27, 2022

    If you want to move mouse between two monitors. You should be able to view the two displays there by doing a right-click on your desktop and selecting "display." To see which one is which, click detect. The monitor can then be moved into a location that fits the physical arrangement by clicking and dragging it there. After that, try moving your mouse there to see if that helps!

    Newcomer
    May 30, 2023

    Change the resolution on both screens to match each other.

     

    I had a tablet that was at 1920x1280 and a TV at 1920x1080. I changed them both to 1920x1080 and now the dual screen automatically fills with a Zoom window when I start a meeting, just how I want it to.

    Newcomer
    March 7, 2024

    I have now found that the second screen in dual monitor mode only show HOST video and not participants, this is no use to man nor beast. It used to show participants but there must have been an update which stuffs this into complete uselessness. Maybe it is a way of pushing people towards Zoom Rooms which costs the Earth!!

    Newcomer
    July 22, 2025

    This is the issue I am having and no one seems to be able to help.  My monitors work fine.  The sharing doesn’t work like it used to.

    Newcomer
    September 30, 2025

    I. have a similar issue.  I am using a MacBook Air and have been successfully running meetings with. up to 20 participants using an external monitor to share my power presentation.  My presenter notes sit on my laptop where my camera is.  This last week teh external monitor has been dropping out, leaving me with participants seeing my notes (not idea).. fixable but not when I am in lecturing mode which these presentations are.  Also my laptop screen is too small to see slides, faces, chat etc.  I don;t know what has changed.  Has zoom updated something?

    Newcomer
    September 30, 2025

    I am not sure my reply came through.  I have recently experienced external monitor drop outs in the middle of running a meeting with a lot of participants.. Does the number of participants affect this.  I use a MacBook Air.  has something changed?  It has worked for years successfully.