Windows 10: Monitors not working in second back HDMI slot

Discus and support Monitors not working in second back HDMI slot in Windows 10 Drivers and Hardware to solve the problem; After restarting my computer one time, my second monitor randomly stopped working and in display settings it shows it greyed out. However, plugging my... Discussion in 'Windows 10 Drivers and Hardware' started by Kaibu_117, Jul 12, 2022.

  1. Kaibu_117 Win User

    Monitors not working in second back HDMI slot


    After restarting my computer one time, my second monitor randomly stopped working and in display settings it shows it greyed out. However, plugging my working monitor into the slot that my second monitor is in shows no signal, but updates and rollback on my display adapter doesn't work. I have a NVIDIA GeForce GTX 750 Ti, and my monitors are listed as ViewSonic VA2213w SERIES my primary monitor, and generic non-pnp monitor my second monitor.

    :)
     
    Kaibu_117, Jul 12, 2022
    #1
  2. AC_10 Win User

    Second monitor not working with HDMI

    Hi,

    I have a AOC monitor hp Pavillion laptop and while trying to connect to the monitor using a HDMI cord, nothing is displayed. Comes up with a No Signal info. I have tried multiple cords : HDMI - HDMI, HDMI - DVI , HDMI - VGA, nothing works. The monitor is
    not detected. I have another laptop on Windows 7 and and if I try to connect directly with VGA - VGA, it works, but does not work with HDMI from the same laptop. Basically, it does not work with HDMI at all.

    I have updated the latest graphics card, both nVidia and Intel, but no progress.

    If I use the same laptop and connect to my hd tv using the same cord it works, but does not work with my monitor. The monitor model is AOC e2450swh. It has support for HDMI. Even if I try to use a HDMI to VGA cord, still it does not display anything.

    Any suggestions would be really helpful.

    Thanks
     
    AC_10, Jul 12, 2022
    #2
  3. AhmadSal Win User
    HDMI cable not detected by computer

    I want to connect to a monitor or TV with HDMI. No signal to either. Monitor says "no signal coming from your computer".

    I have tried with no success:

    • HDMI directly into Nvidia 980 HDMI slot
    • HDMI directly into motherboard slot, Intel i6700k with integrated graphics
    • HDMI indirectly into HDMI(female)-to-Displayport(male) adapter, into Nvidia 980 Displayport slots
    I have verified:

    • Cable plugged into second computer, connected fine to monitor and TV
    • Tried different HDMI cable, same results on both computers
    • Displayport slots on Nvidia 980 work on monitor with DP-mDP cable
    • Both monitor and TV are 4k. Output is 4k on other computer, and 4k using Displayport on this computer.
    • Used newest graphics driver for Nvidia 980
    • Used old graphics driver (2020) for Nvidia 980
    All cases, other computer connected successfully and this computer received "no signal"

    Other than the hardware checks and the driver checks, I am not sure what other steps I should try.

    Since it applies to both Nvidia 980 and motherboard, and since Displayport works but HDMI through Displayport doesn't work, I feel like there is some issue in the computer working with HDMI signals.

    Thanks, Ahmad
     
    AhmadSal, Jul 12, 2022
    #3
  4. AC_10 Win User

    Monitors not working in second back HDMI slot

    Second monitor not working with HDMI

    Hi,

    I have tried the above steps but still the monitor is not detected.

    When I plug it to the tv through hdmi, it is displayed, but not to the monitor.

    Regards,
     
    AC_10, Jul 12, 2022
    #4
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Monitors not working in second back HDMI slot

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