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manually wake up sonos arc from standbby?

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I've notice there is a lot of posts about sonos arc and LG cx, but i think mine is different.

It's not that arc stops working, is more that some apps are able to wake it up and other aren't.

In my case, some times the PC signal or lg native you tube app aren't able to wake it app. The solution at the moment is to pass through Amazon prime/Netflix apps and then switch to you tube or the PC.

Is there a way to permanently disable the stand by in the arc ? Or to switch it on/off manually?

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Corry PAnswer

Sonos Staff

Hi @riiiic

I am very sorry for the rant, but the ARC is outputting the sound, if no sound comes out, I’d think it is the first culprit.

You are not alone in this, unfortunately, but the Arc (or any other external audio device, for that matter) can only play if it is sent audio data in the first place.

I recommend you get in touch with our technical support team, who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports. The Arc will supply them with HDMI-CEC data and whether or not it was actually receiving audio data at the time.

I hope this helps.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

G

GuitarSuperstar

Lead Maestro

Do you have TV Autoplay enabled under the Arc’s settings in the Sonos app?

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"Receive with simplicity everything that happens to you." - Rashi

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riiiicAuthor

Collaborator I

Yes TV autoplay is enabled.

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Corry P

Sonos Staff

Hi @riiiic

Thanks for your post!

Yes TV autoplay is enabled.

Then you’ve already done all that can be done from the Arc’s perspective.

Do you have other devices connected to the TV? If so, please test with them temporarily disconnected - does this help with the issue at all?

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"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

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riiiicAuthor

Collaborator I

There are a lot of issues concerning CX and ARC and various devices:

PS5 is fine
PC not fine, I guess if I started without having a sound signal it won’t wake up the arc, then I have to pass through CX-app-Netflix and back to PC works).

On the other hand this arc behavior is good when I want to use BT headphones linked to the TV, as a matter of fact when arc is awake it is impossible to use CX BT audio, no matter what you do it will revert back to arc.

It would be just nice to have the chance to switch everything on/off.

Is disabling TV autoplay leading to this result? Can I manually select when to turn the arc on and off ?

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Corry P

Sonos Staff

Hi @riiiic

Disabling Autoplay would prevent the Arc from automatically selecting the HDMI input as what to play. If it is already set to play TV audio (no music has been played to it since the last time TV audio was played) then I don’t think it would make a difference.

It’s possible that an external device is causing a HDMI-CEC conflict, resulting in the behaviour you see. Please try the following: turn on your PS5, then select the Settings cog from the top-right corner. From there, go to Settings > System > HDMI and disable HDMI Device Link.

Note that if you prevent the issue from happening, it's entirely possible you won’t then be able to use your headphones with your TV unless you disable the TV’s CEC functions too (which will stop audio from going to the Arc) - LG call their version of CEC “Simplink”. Also, if you were to leave Simplink off, that would prevent the Arc from playing until you turn Simplink on again, so that may be the answer you’re looking for - to be honest, I’m now a little confused over which result you actually want.

I hope this helps.

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"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

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riiiicAuthor

Collaborator I

Hey thanks a lot, I am also confused cause these pieces of technologies in 2023 they should just work and do what you ask them.

I am guessing the main fault is due to LG, the arc simply received a signal whether or not the TV send the signal to it.

The problem is that the TV is set so send the audio signal to the ARC at all times, if I check which audio output is on it says “arc”.

BT audio should be prioritized (by the tv)

Youtube (TV) should turn on the arc, I am suspecting it is something related to the audio format (stereo vs multi channels).

PC should turn on the arc, but this is also bugged, native atmos sounds work, other sounds that are remixed by windows 11 sometimes are not reproduced correctly, hence you have to manually set the sound output to stereo (in win sound settings) and back to atmos to make it work (I know is dumb but it is the only way).
Nintendo switch HDMI coding is amazing, it does turn on the arc and the TV
PS5 also works ok.

I know you are not LG customer service, but I am doubting they will listen to me.

If sonos tells them “hey dummies at least disabled simply link when a BT device is connected” I think we have more chances to get something right out of this mess.

I am very sorry for the rant, but the ARC is outputting the sound, if no sound comes out, I’d think it is the first culprit.

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Corry PAnswer

Sonos Staff

Hi @riiiic

I am very sorry for the rant, but the ARC is outputting the sound, if no sound comes out, I’d think it is the first culprit.

You are not alone in this, unfortunately, but the Arc (or any other external audio device, for that matter) can only play if it is sent audio data in the first place.

I recommend you get in touch with our technical support team, who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports. The Arc will supply them with HDMI-CEC data and whether or not it was actually receiving audio data at the time.

I hope this helps.

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"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

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riiiicAuthor

Collaborator I

Thank you so much Corry, I was wondering whether this sort of analytic software existed like a log file.

I really appreciate the fast and kind support, one more thing to like about Sonos.

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