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

    alphanumeric said: View Post
    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.
    Ugh, I don't think you understand the problem.
    Last edited by parkersblock; 13 Aug 2015 at 11:46.
      My System SpecsSystem Spec


  2. Joined : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,976
    Windows 10 IoT
       13 Aug 2015 #12

    Only going by what you said,
    "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." < TV is Main display.
    "When I hit win+P and select secondary only it should leave me with just the TV running but in Fact the opposite occurs. " < You selected secondary only, which is the other display, not the TV.

    Your definition of main display and mine must be different. In Windows you can set what ever monitor you want as the "Main Display". This has nothing to do with what screen shows the POST and the Windows Boot Screen, that will not change. What will change is what happens when you press the + P keys. If you select PC only, only the monitor set as the Main Display will stay active, all the others will go blank. Change which monitor is set to Main Display and it changes which monitor stays on and which goes off.
      My System SpecsSystem Spec


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

    alphanumeric said: View Post
    Only going by what you said,
    "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." < TV is Main display.
    "When I hit win+P and select secondary only it should leave me with just the TV running but in Fact the opposite occurs. " < You selected secondary only, which is the other display, not the TV.

    Your definition of main display and mine must be different. In Windows you can set what ever monitor you want as the "Main Display". This has nothing to do with what screen shows the POST and the Windows Boot Screen, that will not change. What will change is what happens when you press the + P keys. If you select PC only, only the monitor set as the Main Display will stay active, all the others will go blank. Change which monitor is set to Main Display and it changes which monitor stays on and which goes off.
    Read this, the guy explains the problem better than me. My tv is connected via HDMI without the use of a dvi adaptor though.

    Changing monitor identities?
      My System SpecsSystem Spec


  4. Joined : Jul 2015
    Posts : 6,428
    Windows 10 Pro
       13 Aug 2015 #14

    In the Customize Display Screen like shown in post number 6. Click and drag the big box 1 to the other side of 2 and let it go. Then click on Identify. It will show which identity your TV is assigned to and which identity your Monitor is assigned to. Click on the big square that is the same as the identity your monitor is assigned to, when that is highlighted make sure "Make this my main display is checked." Click apply if you have to.
      My System SpecsSystem Spec


  5. Joined : May 2015
    Posts : 38
    Windows 10 Pro
       13 Aug 2015 #15

    NavyLCDR said: View Post
    In the Customize Display Screen like shown in post number 6. Click and drag the big box 1 to the other side of 2 and let it go. Then click on Identify. It will show which identity your TV is assigned to and which identity your Monitor is assigned to. Click on the big square that is the same as the identity your monitor is assigned to, when that is highlighted make sure "Make this my main display is checked." Click apply if you have to.
    Maybe read the thread first before posting? Cheers.
      My System SpecsSystem Spec


  6. Joined : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,976
    Windows 10 IoT
       13 Aug 2015 #16

    parkersblock said: View Post
    Read this, the guy explains the problem better than me. My tv is connected via HDMI without the use of a dvi adaptor though.

    Changing monitor identities?
    The monitor numbers do not matter. You can't change them. You want them to physically match your actual placement but other than that it makes no difference as to how + P reacts.
    Humor me will you and try this. Go to Settings > System > Display. You should see your monitor layout and the screen numbers. Click the one that is not the TV so its selected. Now look down at the bottom and see if the "Make this my main display" is greyed out. If its not, check mark the box and click apply. Now press + P and select PC only. It should be the only screen active now. Select secondary only and your TV should be the only one active. If that's what you want leave it that way. Now select Extend and they should both be on. If that's not what you want select the TV and put a checkmark in the box for Make this my main display. Now PC only will be the TV and secondary only will be the other screen.

    This will not change which screen shows the BIOS Boot screen or the Windows Boot screen or logon screen. Just because that shows on the other monitor doesn't mean your main display changed on the reboot. Once you log in it will be the way you last left it. Mine always shows on the monitor number 2 in the screen shoot I posted earlier. The one numbered 1 is set as my main screen.
      My System SpecsSystem Spec


  7. Joined : May 2015
    Posts : 38
    Windows 10 Pro
       13 Aug 2015 #17

    alphanumeric said: View Post
    The monitor numbers do not matter. You can't change them. You want them to physically match your actual placement but other than that it makes no difference as to how + P reacts.
    Humor me will you and try this. Go to Settings > System > Display. You should see your monitor layout and the screen numbers. Click the one that is not the TV so its selected. Now look down at the bottom and see if the "Make this my main display" is greyed out. If its not, check mark the box and click apply. Now press + P and select PC only. It should be the only screen active now. Select secondary only and your TV should be the only one active. If that's what you want leave it that way. Now select Extend and they should both be on. If that's not what you want select the TV and put a checkmark in the box for Make this my main display. Now PC only will be the TV and secondary only will be the other screen.

    This will not change which screen shows the BIOS Boot screen or the Windows Boot screen or logon screen. Just because that shows on the other monitor doesn't mean your main display changed on the reboot. Once you log in it will be the way you last left it. Mine always shows on the monitor number 2 in the screen shoot I posted earlier. The one numbered 1 is set as my main screen.
    I'm literally baffled at your response. Of course my main displayed is marked as my main display..

    My screens function perfectly as I stated in my first post, its the fact that my television is always identified as #1 despite being the secondary screen. Did you read the link I posted?
      My System SpecsSystem Spec


  8. Joined : May 2015
    Posts : 38
    Windows 10 Pro
       13 Aug 2015 #18

    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.
    I've read somewhere else this might be the case but I cannot find the thread at the moment.

    I'm assuming on Nvidia cards that the HDMI is always (0) as you refer to it as my tv has been labelled #1 since very first time I started using dual monitors years back.

    If this the case I could solve the problem using a HDMI/DVI adaptor but then I'd lose the sound signal to my tv which is a no go.
      My System SpecsSystem Spec


  9. Joined : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 7,976
    Windows 10 IoT
       13 Aug 2015 #19

    parkersblock said: View Post
    I'm literally baffled at your response. Of course my main displayed is marked as my main display..

    My screens function perfectly as I stated in my first post, its the fact that my television is always identified as #1 despite being the secondary screen. Did you read the link I posted?
    You never said anything about it being ID'd as no 1 in your first post? You said, "No matter what I do Windows always labels my secondary TV screen as my PC screen and vice versa." What does it matter what number it has? Being labeled as No 1 doesn't necessarily mean its the "PC Screen". As I've been trying to tell you, what monitor is set as the Main display is what becomes the PC Screen. The 1 just means its connected to port 1 as far as the video card is concerned. Set the other monitor as Main Display and + P will treat your TV as an external display. problem solved.
      My System SpecsSystem Spec


  10. Joined : May 2015
    Posts : 38
    Windows 10 Pro
       13 Aug 2015 #20

    alphanumeric said: View Post
    You never said anything about it being ID'd as no 1 in your first post? You said, "No matter what I do Windows always labels my secondary TV screen as my PC screen and vice versa." What does it matter what number it has? Being labeled as No 1 doesn't necessarily mean its the "PC Screen". As I've been trying to tell you, what monitor is set as the Main display is what becomes the PC Screen. The 1 just means its connected to port 1 as far as the video card is concerned. Set the other monitor as Main Display and + P will treat your TV as an external display. problem solved.
    People like you are why problems like this are never fixed. You think you have the answers to everything when you clearly don't..

    I'll leave it at that.
      My System SpecsSystem Spec


 
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