Second monitor no signal

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  • zilla2022
    PCHF Member
    • Feb 2022
    • 4

    #1

    Second monitor no signal

    Hello all.

    I appear to be having an issue with my dual monitor set up. Upon starting the computer, often only 1 of my 2 monitors will work. The other will show no signal and then turns off. Done all the basic checks, no issues with the monitor itself, right HDMI source selected etc.
    Then I decided to unplug the monitor that was working fine, and upon restart the monitor that wouldn’t start suddenly worked perfectly fine.
    After a bunch of restarts currently both are working, but it is quite a hassle having to fix this every time the PC is turned off.

    Does anyone happen to know what could cause this issue? It seems like the computer has trouble starting both monitors at the same time, but I’m not sure what is causing this.

    Any help is greatly appreciated.
  • PeterOz
    PCHF Technical Response Team
    • Mar 2021
    • 4191

    #2
    are both monitors HDMI
    are both on a graphics card

    Comment

    • zilla2022
      PCHF Member
      • Feb 2022
      • 4

      #3
      Yes both are HDMI, I use only one graphics card (NVIDIA GeForce GTX 970)

      Comment

      • Bruce
        PCHF Moderator
        • Oct 2017
        • 10702

        #4
        I think Peter means, do both HDMI cables go to that same GTX970?
        when I Google its specs, I’m only seeing cards with one HDMI port.

        when a PC has an add-on graphics card, it auto disables the onboard graphics ports.

        Comment

        • PeterOz
          PCHF Technical Response Team
          • Mar 2021
          • 4191

          #5
          Correct are both on a graphics card or is one onboard and one on the card
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          • Bruce
            PCHF Moderator
            • Oct 2017
            • 10702

            #6
            @zilla2022 - any updates?

            Comment

            • phillpower2
              PCHF Administrator
              • Sep 2016
              • 15209

              #7
              Thread closed due to lack of feedback from the OP.

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