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LG 55UH770V - audio issues


Ubergeeksov

Question

Hi,

 

I am hoping someone can help, as I've not been having any joy elsewhere.

 

I have an LG 55UH770V running the latest firmware/software.

 

I connect to my A/V receiver via HDMI 2 (ARC) and for TV apps (Netflix, Plex) have surround sound.

 

I connect my Xbox One and PS4 to HDMI 1 and 3 respectively. Up until yesterday I would then have surround sound, via ARC, playing from my A/V system for the PS4 and XBox One.

 

Yesterday, I noticed that the sound from the PS4 was only in stereo. On checking, the same is true for Xbox One. The Xbox will not even allow me to now select 5.1 or 7.1 in the audio set up, saying my receiver (i.e. the TV) does not support it. The TV apps, remain fine, playing surround sound

 

I cannot understand why this has suddenly happened or how to solve it.

 

Any help is appreciated.

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In the words of FE Smith, I am none the wiser, but better informed.

 

The problem appears to be limited to audio output from the consoles which is linear PCM. If I set the Xbox One or PS4 audio settings to bitstream and either Dolby or DTS, and provided that the digital sound out on the LG is set to auto (instead of PCM), then I have surround sound. However, if the audio output on the PS4 is set to linear PCM or on the Xbox One is set to uncompressed 5.1 or 7.1 (which I guess is linear PCM), then this is not detected by the TV, and I simply get stereo, irrespective of whether I have the digital sound out set to auto or PCM.

 

Will be calling LG tomorrow!

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