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Solution Found - Q950A eARC Problems

(Topic created on: 02-07-2021 04:56 PM)
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Moralneeeick
Pioneer
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I have spent 4 painful days trying to solve the issues with eARC on the Q950A when paired with a Samsung TV (I have QN800A). I have finally got the eARC connection to persist and have some explains below. Hopefully someone from Samsung reads this and fixes their software.

What you need to sacrifice to get this to work:

Samsung universal remote for everything except Q950A.

CEC functionality from a non samsung device.

What the issues are:

1 - any device connected in the chain which has CEC enabled can break the earc handshake

2 - if you use samsung universal remote it will not leave the appropriate delays when turning on devices causing earc handshake to break

Steps to get a perfect earc setup:

1 - on every device except for TV disable CEC or HDMI control. Apple TV, Sky Q, Xbox, PS5. Has to be all of them.

2 - unplug all devices from tv and Soundbar and hard reset both. 950A hard reset is holding volume up and down on bar until you see INT displayed and then it says BYE.

3 - During Samsung tv setup plug everything back in (nothing into Soundbar, all into TV)

At this point samsung setup pairs things with the smart remote. But it also defaults earc to ‘off’ which is helpful for next step.

4 - once the tv is set up - do not enable earc (yet). Go to sources and universal remote and delete all sources created by Samsung so they default to HDMI 1, 2 etc. You can still rename them and add them to home just don’t use the universal remote.

5 - Turn off all HDMI inputs and turn off Soundbar.

6 - now enable earc in the menu. If it doesn’t switch on the Soundbar after this you can. It should detect earc for the first time.

7 - now turn on Xbox or PS5 - you will have to change the input manually on Samsung remote. In samsung sound settings on tv once the input is up select pass through and leave it.

Now you have an earc connection which can’t be killed by external sources. One final point:

whenever you turn on tv - make sure you turn on tv first and no other device. Soundbar should come on automatically if you have a Samsung tv - if not turn that on after tv is on. Check you have earc - if so you’re safe to turn other devices on.

I don’t know if Samsung will fix this - but I know understand why it’s not totally within their control. However it is in their control to fix pass through for multi channel LPCM and DTS-X.

make sure Xbox is set to bitstream Atmos pass through and PlayStation set to Dolby. Also make sure to change blu ray app output to bitstream within the player to get lossless Atmos.

Hope this helps someone. And I hope Samsung read it.

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97 REPLIES 97
Merezek
Student
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Well, unfortunately that did not work for me. Quite the opposite - it disabled fast boot as advertised, so the splash screen showed every time the TV was switched on no matter how much time had passed since turning off the TV. It effectively removed the sweet spot of ~15 seconds  between turning TV off and back on during which TV fast booted and the soundbar actually switched on.

It seems like I could use an opposite setting like „instant ON no matter how much time passed since TV was switched off”.

This “Instant on” setting makes no sense to me anyway since it only works right after switching off the TV, and usually when you switch off the TV you don’t want too boot it on right back.

 

 

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ayhamkutit
Apprentice
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Instant on works all the time, not only right after u switch TV off... And I was having eARC issues with instant on turned on until I turned that setting off and never had that issues since.

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Merezek
Student
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Ok so this is something I unfortunately could have expected.

I think by now I have tried everything I could and it is clear that this thing is just broken. No software update will probably be able to fix it.
My warranty is long over so I won’t have the board replaced.

I’ll just know which brand to avoid when shopping for a new TV - that’s for sure.

 

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ayhamkutit
Apprentice
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Why don't you simply use a SmartThings routine or Google home to turn on your soundbar when your TV turns on?

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Merezek
Student
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We’ll, not my TV that’s for sure. (65 QN95A) It only fast boots instantly (and that is literally within 2 seconds) only after no more than about 20 secs or so passed since switched off.
It could be faulty I don’t know.

Either way it seems to be opposite for me- instant on is the only boot method that works for the soundbar to switch on along with TV (when the TV is set to eARC)

 

 

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Merezek
Student
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Even if I manually switch the soundbar On it will not receive any sound from the TV (despite showing HDMI eARC in TV settings).

It seems there is this handshake that must be sent from the TV to the soundbar so that the eARC works.

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Merezek
Student
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I checked again and to be more precise: 

1. When the TV is switched on right after it was switched off (~15 secs) - then it boots up instantly and eARC works 

2. when I switch it on after more time passed since switched off, there is no sound from the soundbar, the soundbar does not even resume from the stand by mode.

It seems like the instant boot is not always there, sometimes it boots really fast, sometimes it shows splash screen QLed logo… I may switch on instantly after more than 40 minutes (like now) or show slash screen with long boot after 1 minute. 
That being said I think you’re right - it is SUPPOSED to work all the time.

I’m sorry for creating a little bit of a mess in this topic and thank you all for helping me resolving my issue.

 

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ayhamkutit
Apprentice
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In my case, the issue was that the TV was turning on too fast (before my soundbar).

Did you try to disable both "instant on" settings? I know you're saying the issue happens when the TV turns on after sometime, but give it a shot

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