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  1. Joined : May 2015
    Posts : 38
    Windows 10 Pro
       11 Aug 2015 #1

    Possible to re-assign monitor identities/numbers?


    No matter what I do Windows always labels my secondary TV screen as my PC screen and vice versa. It's not really a problem in terms of functionality but it does annoy me that I can't change it. I've been through countless televisions and GPU's over the years but it always remains so possibly there is a good reason for it?

    Anyway, the 'issue' has been persistent since W7 (and possibly before?) but I'm wondering if there is now/or always has been a work around for this?

    It's erked me for years that I can't change it but maybe someone on here has the know how.

    Cheers!

    Edit: This post explains it better Changing monitor identities?

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    Last edited by parkersblock; 13 Aug 2015 at 12:38.
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  2. Joined : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,962
    Windows 10 IoT
       11 Aug 2015 #2

    Which one is set as your main screen? That's the one that will stay on when you switch to PC only. Open the screen that shows the monitor numbers, select your laptops screen, and then make sure the Make this my main screen is set.

    Main Display - Change in Windows 10
      My System SpecsSystem Spec


  3. Joined : May 2015
    Posts : 38
    Windows 10 Pro
       11 Aug 2015 #3

    alphanumeric said: View Post
    Which one is set as your main screen? That's the one that will stay on when you switch to PC only. Open the screen that shows the monitor numbers, select your laptops screen, and then make sure the Make this my main screen is set.

    Main Display - Change in Windows 10
    If only it was that simple!

    I'm aware of how to set the main monitor but thanks all the same
      My System SpecsSystem Spec


  4. Joined : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,962
    Windows 10 IoT
       12 Aug 2015 #4

    I run triple monitors on my desktop PC. What ever monitor I set as the Main Screen becomes the PC Only screen as far as + P goes. It's the one that stays on when I select PC only. I run dual monitors on my laptop but the second screen is USB. I'm not sure I ca set it as the main and run it by itself. I'll check latter. My laptops built in screen has always been the PC screen as its set as main screen by default.
      My System SpecsSystem Spec


  5. Joined : Mar 2015
    Posts : 191
    Windows 10 Pro (x64)
       12 Aug 2015 #5

    What monitor is defined as your main monitor is based on the port it is plugged in on the GPU. You have to figure out which port is zero (0) on the GPU that is going to be the main monitor.
      My System SpecsSystem Spec


  6. Joined : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,962
    Windows 10 IoT
       12 Aug 2015 #6

    logicearth said: View Post
    What monitor is defined as your main monitor is based on the port it is plugged in on the GPU. You have to figure out which port is zero (0) on the GPU that is going to be the main monitor.
    As far as the BIOS POST screen goes and Windows Boot Screen yes. You can't change that. But you can make any screen you want the Main Screen as far as Windows goes. Go to Settings > System > Display. One Monitor will be set as the Main Screen. Click one of the others and you'll see a "Make this my main display" option. If you do that your main taskbar with the clock and notifications area will move to that screen. Pressing + P and selecting PC Only, will result in only that screen being active. In this screen shot display No 2 is the one my POST screen and boot screen show on. The one numbered 1 is my main screen and the only one that stays on when I switch to PC only for gaming.

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  7. Joined : Mar 2015
    Posts : 191
    Windows 10 Pro (x64)
       12 Aug 2015 #7

    Well yes. I should clarify I was referring to the default state on how a monitor is determined to be the main monitor before any configuration is used to change it.
      My System SpecsSystem Spec


  8. Joined : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,962
    Windows 10 IoT
       12 Aug 2015 #8

    logicearth said: View Post
    Well yes. I should clarify I was referring to the default state on how a monitor is determined to be the main monitor before any configuration is used to change it.
    I knew what you meant. My intent was to just add to it. My video card has 2 DVI and 1 HDMI. If I plug just 1 monitor in on any one port, the BIOS boot screen and the Windows boot screen show on that monitor. It gets complicated though if I plug another monitor in. The BIOS POST screen will move depending on what other ports are used. With three monitors connected it ends up on DVI Port 1. You would think it would be the HDMI port but no. That's the one I set as my main monitor.

    EDIT: Like you said, moving your monitors to different connectors could be advantageous. Doesn't work for though as I want my biggest monitor on the HDMI port. It's the one I use when gaming. I can live with my POST and BOOT screens being on my right hand monitor.
      My System SpecsSystem Spec


  9. Joined : May 2015
    Posts : 38
    Windows 10 Pro
       13 Aug 2015 #9

    alphanumeric said: View Post
    I run triple monitors on my desktop PC. What ever monitor I set as the Main Screen becomes the PC Only screen as far as + P goes. It's the one that stays on when I select PC only. I run dual monitors on my laptop but the second screen is USB. I'm not sure I ca set it as the main and run it by itself. I'll check latter. My laptops built in screen has always been the PC screen as its set as main screen by default.
    On my PC the main/PC display is always the mini hdmi port with my television no matter what you set as the Main display.

    As ive said it's not really a functionality problem but nore of an aesthetic one. When I hit win+P and select secondary only it should leave me with just the TV running but in Fact the opposite occurs.
      My System SpecsSystem Spec


  10. Joined : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,962
    Windows 10 IoT
       13 Aug 2015 #10

    It's doing what you told it to do. If your TV is set as the main display, and you select secondary only. The TV will lose signal. The non main screen is the secondary screen.
      My System SpecsSystem Spec


 
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