Apple TV 4K Sleep Mode Turning off my Soundbar, but not my LG HDTV

Discussion in 'Apple TV and Home Theater' started by spaceballl, Oct 5, 2017.

  1. spaceballl macrumors 68030

    spaceballl

    Joined:
    Nov 2, 2003
    Location:
    San Francisco, CA
    #1
    I'm so close to one-remote perfection. My HDTV is connected to the soundbar via HDMI ARC. AppleTV connected to HDTV via HDMI. When I put the Apple TV to sleep, the sound bar goes off as expected - yay. The TV, though, doesn't. I can't tell if this is an LG issue or an Apple TV issue... I wouldn't know how to reasonably troubleshoot that. Anyone else having this issue w/ a soundbar connected via ARC?
     
  2. Videoman123 macrumors newbie

    Joined:
    Oct 1, 2017
    #2
    I have an LG TV connected to a Yamaha receiver. Same problem as you have. Used to work with my old ATV 4 and Samsung TV.

    Grateful for any solutions.
     
  3. spaceballl thread starter macrumors 68030

    spaceballl

    Joined:
    Nov 2, 2003
    Location:
    San Francisco, CA
    #3
    If it used to work, then I guess I would think the problem is on Apple's side.
     
  4. Videoman123 macrumors newbie

    Joined:
    Oct 1, 2017
    #4
    Either that or LG’s side. But I have noticed that the Apple TV changes the settings for turning off TV by itself, so I wonder if it could be a bug with TVOS 11.
     
  5. techwarrior, Oct 6, 2017
    Last edited: Oct 6, 2017

    techwarrior macrumors 65816

    techwarrior

    Joined:
    Jul 30, 2009
    Location:
    Colorado
    #5
    Slightly different problem here. My setup:

    ATV4 <> Sony HT Receiver via HDMI <> Toshiba via HDMI ARC

    Power on and off works fine, but unpredictably, the audio sets to TV instead of Receiver. Have to use the TV remote to go into the menu and change the audio output to the Sony receiver.

    Also, if I leave the ATV on screensaver with no audio, the Sony shuts down after 20 minutes or so, ok if playing audio such as iHeart\Pandora\iTunes.

    In my case, I think the Sony receiver is part to blame, no issues with Onkyo until the HDMI interface board gave out on it. But, it seems ATV's HDMI-CEC is perhaps not completely compatible with all of the component CEC implementations. I understand the CEC standard is kind of a loose collection of compatibilities and perhaps every component manufacturer does their own thing to a degree.

    Only suggestion I have is to double check the TV settings. My Toshiba TV has a setting to enable the CEC capability, but many manufacturers call it something else. I think LG calls it SimpLink. I recall there were also some settings having to do with power up\down in the TV setup as well.

    Update: Thanks to your inquiry, I took another look at my Sony receiver and found the settings that fix both the sleep issue, and the audio switching on the TV. But, again, in your case, the TV is likely the culprit as you have ATV <> TV <> Sound Bar.
     
  6. profets macrumors 601

    Joined:
    Mar 18, 2009
    #6
    Did you ever have it working with the LG TV? I would check any settings the TV has for CEC (or whatever they may refer to it as).

    I feel fortunate to have it working in the two main rooms where we watch TV. Both are setup with Apple TV <-> Sony AVR <-> TV (one room has a samsung TV and the other a Vizio). Both work well to turn on/off the AVR and TV.

    When I've tested the Apple TV with different TVs, I've always had mixed experience with whether it's able to control the TV via CEC. So far Sony, Samsung and Vizio TVs seem to work well though. Really tough to troubleshoot otherwise.
     
  7. spaceballl thread starter macrumors 68030

    spaceballl

    Joined:
    Nov 2, 2003
    Location:
    San Francisco, CA
    #7
    No it hasn't ever worked with the HDTV, but to be clear, CEC is working. The Apple TV turns the TV on, and it controls the sound bar. The sound bar is connected via HDMI ARC to the TV, and it's passing CEC codes from Apple TV -> TV -> Sound Bar. It's just the turn OFF that isn't working. I think it's an Apple TV bug. I'm going to update to the beta tonight and see if that fixes things.
    --- Post Merged, Oct 9, 2017 ---
    CEC is working on the TV / Apple TV. Apple TV can turn the TV on, it can adjust the volume, pass commands through to the soundbar, etc. It's JUST the power-off that isn't working... I'll update to the beta tonight and see if it works.
     
  8. richardamp macrumors newbie

    Joined:
    Jan 18, 2013
    #8
    This is an LG issue. Their implementation of CEC allows the TV to be turned on when you turn on a linked device. It also allows for turning off a linked device when you turn off the TV. For but some odd reason, if won’t turn off the TV when you turn off a linked device.

    It all worked as expected with my old Vizio, so not sure why LG decided to go this route.
     

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7 October 5, 2017