Magnifi Mini: ARC issue with LG LE265300 TV

I'm trying to use ARC with my Magnifi Mini and an LG 26LE5300 TV. The TV manual says it supports ARC and CEC, and has a "Simplink" menu that allows me to select "Home Theater Speaker" instead of "TV speaker" when the Magnifi is connected via HDMI. The TV appears to be happy and turns off the TV speaker. The TV volume controls report that they're controlling the "home theater" volume, the white LED bargraph on the Magnifi Mini goes up and down the way it should, and the TV's mute/unmute function controls the Magnifi.

But there's no sound at all -- even though I've verified the source is set to ARC.

I've tried the internal tuner on the TV and several different HDMI sources with various audio formats (PCM stereo, Dolby-D, Dolby-DTS, etc.). Same result for all: silence.

Any suggestions?

The Magnifi seemed to update successfully when I first connected to it via google home.

I can stream bluetooth music, and casting to the Magnifi from google play music works.

If I connect a TOSLink cable to the TV (leaving HDMI connected), and select the optical input on the Magnifi, then I get sound, and the TV volume buttons still control the Magnifi. But, when I switch the TV input between different sources, the Magnifi often (but not always) goes silent, and I have to re-select the optical input to get the sound back. Turning the TV off/on also seems to cause problems: the TV doesn't reliably reconnect to the Magnifi, and will usually turn the TV speakers back on.

If I unplug the HDMI cable, leaving the TOSLink cable connected, the Magnifi is much better behaved. Switching sources on the TV doesn't cause problems, and the Magnifi goes to sleep when the TV is turned off and wakes up when the TV is turned on. I've programmed the Magnifi to recognize the TV remote's volume and mute buttons. The TOSLink-cable-only setup is good enough so the question of why ARC doesn't work is largely moot -- but it bugs me that I can't get ARC to work.


  • KennethSwaugerKennethSwauger Moderator Posts: 6,018
    Welcome to Polk's forum. Let me send this to my friend at Polk for help.
    Regards, Ken
    "Passion is inversely proportional to the amount of real information available", G. Benfield
  • KennethSwaugerKennethSwauger Moderator Posts: 6,018
    The consensus of opinion is that the trouble may lie with the LG not providing an ARC channel. The reasoning is that everything else seems to be fine with the Polk and if it isn't receiving anything then there wouldn't be an output. So, maybe a call to LG support is in order.
    I hope this is helpful information.
    Cheers, Ken
    "Passion is inversely proportional to the amount of real information available", G. Benfield
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