Windows 10: All HDMI Out ports on 3 BenQ Monitors have lost their audio

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  1.    09 Jul 2017 #1

    All HDMI Out ports on 3 BenQ Monitors have lost their audio

    Hi, I have 3 BenQ RL2460HT Monitors. They have 2 HDMI in Ports and an HDMI Out port with allows Video/Audio passthrough which is important for me since I stream on Twitch. So my Xbox goes to my Monitor then to the Elgato which helps with input delay. One day I went to stream and the HDMI Out port had no audio, so I swapped to the other 2 monitors and none of them were able to get audio to my Elgato HD60S. I'm unsure if it's a BenQ issue or an Elgato issue. Could it be a Realtek issue since video works fine.
      My ComputerSystem Spec

  2.    09 Jul 2017 #2

    Right click the speaker icon in notifications area of the taskbar, down by the clock. Then select "playback devices". To get audio out of HDMI it needs to be set to Digital Display Audio. That's what it lists for me. Mine is set to Speakers as its my laptop and I don't have an HDMI display connected. If that's not your issue it must be a monitor setting?
      My ComputerSystem Spec

  3.    09 Jul 2017 #3

    It says that none of these are plugged in there's like 5-6 Digital Display Audios.
      My ComputerSystem Spec

  4.    10 Jul 2017 #4

    How many you have I think depends on how many ports you have on your video card. I only had the one entry on my laptop. I'm on my desktop PC and have 5 entries. All my NVidia High Definition Audio entries show not plugged in. All my monitors are DVI.

    A more detailed view of your setup would help. Are you trying to get your PC audio to the Elgato or your XBOX audio to the Elgato? If its the XBOX ignore what I posted above, It must be a setting in the monitor setup menu. If its the PC audio you want, what are you using for speakers etc? If the sound doesn't go to the monitors speakers it will never pass through to the Elgato.
      My ComputerSystem Spec

  5.    10 Jul 2017 #5

    Well I have my Xbox One and Xbox 360 going into a Bi-Directional Switcher (which has never given me this issue before) via HDMI, I have also tried a direct connection, the Switcher then connects to HDMI 1 in one of my Monitors. The Monitor that it's plugged into it connected to my PC via DVI and I've also tried one that's connected via HDMI to an Active Mini DP Adapter and another one that's just straight HDMI. I've had this setup for a while and it's never caused an issue. What I'm trying to do is get my audio from my Xbox through the Monitor to the Elgato to the Elgato Software which I've been able to do successfully until recently which made me wonder what started causing the issue.
      My ComputerSystem Spec

  6.    10 Jul 2017 #6

    Ok, since you have more than one monitor, swap in a second monitor in place of the Elgato. If you get video and sound on the second monitor you know the issue is with the Elgato. If you only get video but no sound its with the monitor or XBOX etc. If you have no sound on both monitors its a problem with the XBOX or switcher.
      My ComputerSystem Spec

  7.    10 Jul 2017 #7

    On the 2nd monitor, would I unplug the cables from it and just leave the cable from the 1st monitor plugged into the HDMI In port?
      My ComputerSystem Spec

  8.    10 Jul 2017 #8

    EchoX860 said: View Post
    On the 2nd monitor, would I unplug the cables from it and just leave the cable from the 1st monitor plugged into the HDMI In port?
      My ComputerSystem Spec

  9.    10 Jul 2017 #9

    Edit: That was my bad, had it in the wrong input. Okay, so we have video but no audio at all. I can clearly hear the audio on Monitor A, but via HDMI Output, no audio at all to Monitor B
      My ComputerSystem Spec

  10.    10 Jul 2017 #10

    For fun I tried Monitor A HDMI Out to Monitor C Hdmi In and there was no signal at all.
      My ComputerSystem Spec

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