Windows 10: TV as secondary monitor dont work after sleep

Discus and support TV as secondary monitor dont work after sleep in Windows 10 Graphic Cards to solve the problem; Hello there, firtly its first time i tried an TV as secondary monitor, so i trying to understand if its supposed to work like that. I have an Acer... Discussion in 'Windows 10 Graphic Cards' started by chummy, Feb 1, 2020.

  1. chummy Win User

    TV as secondary monitor dont work after sleep


    Hello there, firtly its first time i tried an TV as secondary monitor, so i trying to understand if its supposed to work like that.

    I have an Acer monitor as Main, attached to discrete GTX770 HDMI, and using TV as secondary, attached to Intel iGPU HDMI.
    The problem just happens after Windows sleep and TV automatically turn off, loosing input signal. After OS wake up TV stay off and OS loose dual monitor configs and return to single monitor config.

    Inverting TV as main monitor will need to manually turn it on, but dual monitor config keeps there without issues.

    I tested same TV as secondary monitor at another Windows System and same issue occurs there.

    Is a TV input design supposed to cause this problem when attached as secondary monitor?

    Build System: 18362.592

    :)
     
    chummy, Feb 1, 2020
    #1
  2. chummy Win User

    TV as secondary monitor dont work after sleep

    Hello there, firtly its first time i tried an TV as secondary monitor, so i trying to understand if its supposed to work like that.

    I have an Acer monitor as Main, attached to discrete GTX770 HDMI, and using TV as secondary, attached to Intel iGPU HDMI.
    The problem just happens after Windows sleep and TV automatically turn off, loosing input signal. After OS wake up TV stay off and OS loose dual monitor configs and return to single monitor config.

    Inverting TV as main monitor will need to manually turn it on, but dual monitor config keeps there without issues.

    I tested same TV as secondary monitor at another Windows System and same issue occurs there.

    Is a TV input design supposed to cause this problem when attached as secondary monitor?

    Build System: 18362.592
     
    chummy, Feb 1, 2020
    #2
  3. TV as secondary monitor dont work after sleep

    Its totally a TV issue , some TVs try to save power by turning OFF if [No Signal] is received , then you have to manually turn it ON again , sometimes you can over-ride this in TV menu of some makers by tuning the "Eco" or "Economy" or "Turn Off In .." or "Turn Off If No .." or similar options in menu which would keep it ON while [No Signal] but to note , unlike dedicated monitors the LCDs/LEDs screens remain ON just black which would shorten their lives .
     
    nIGHTmAYOR, Feb 1, 2020
    #3
  4. TV as secondary monitor dont work after sleep

    The TV used as a secondary monitor flickers

    I bought a new 50" Toshiba Ultra HD TV model 50U6863DB ( Specifications: Toshiba Tv 50U6863DB - 50" Toshiba Ultra HD TV )

    I’m using my Television, between other things, as a secondary display for my two PCs, a desktop and a laptop. Both of them runs Window 10.

    The television is connected to the house wifi and communicate with my PCs through “Wireless display”.

    The TV works well when used as a television, no problem in streaming Netflix or YouTube and it performs well when used as a secondary screen for my laptop PC.

    When used as a secondary screen from my desktop PC, the image in the TV “flicker”: every second or so the image blurs for an instant before going back to normal. The issue remains no matter if the PC monitor is mirrored, extended or if only the secondary monitor (the TV) is active.

    Laptop and Desktop PC seems to output at the same resolution (1920 x 1080) and refresh rate (60).

    Lowering the refresh ratio output of the desktop PC from the default 60 seems to improve the situation (it makes the flickering less visible) but do not solve it.

    The TV specifications claim that the maximum available resolution is 3840 x 2160 but this value is not listed as an option by windows. Raising the resolution from the default of 1920 x 1080 to 1920 x 1200 (the only higher value that seems to be available) crash the connection between the TV and the desktop PC. The only way I was able to reconnect TV and desktop PC after this crash was to Format my PC (advice from Toshiba support team).

    Lowering the resolution do not seems to have an impact on the flickering.

    The Graphic card on my desktop PC is NVIDIA GeForce GTX 970. My Windows and my Graphic card drivers are up to date.

    I tried already to reset the TV to factory setting and I already formatted my PC.

    I contacted already Toshiba support team, the local team was unable to solve this issue and I’m waiting to be contacted by the head office but I hope to solve the problem before that.
     
    Marco Vicario, Feb 1, 2020
    #4
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TV as secondary monitor dont work after sleep

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