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Probably not, but I suspect most of us have figured out our own workarounds.

Just curious... What workaround is everyone using to allow for an 8k video source with lossless audio via a AVR / receiver / sound bar, while still allowing ARC to the AVR to work for the built in apps and other devices connected to the TV? Samsung's decision to put ARC and 8k on separate HDMI inputs makes this difficult.

If you plug your 8k source directly into the TV's 8k HDMI input while plugging in the AVR to the TV's ARC input for ARC, then you won't get lossless audio for your 8k source (or anything else plugged into the TV) because ARC doesn't support it. Not at all acceptable for a fancy and expensive 8k setup. If the TV had EARC then this setup would work fine and would be the way to go.

If you plug your 8k source into an 8k capable AVR then you have to connect the the AVR to the TV's 8k input which doesn't support ARC. If you want ARC as well you'd need to connect your AVR to both the TV's 8k and ARC inputs. There are only a few 8k capable receivers currently available and neither of the ones I tried (Marantz and Denon) support that. Or if you look at it another way the TV doesn't support having the same AVR plugged in on two different inputs.

My solution is to not use the AVR's ARC feature at all. I plug the 8k source into my 8k capable AVR, plug the AVR into the TV's 8k input, plug an HDMI ARC extractor device into the TV's ARC input and connect the ARC extractor device's HDMI audio output to one of the HDMI inputs on my AVR. Kind of complicated but it works well enough. The particular ARC extractor device I use is also an HDMI switch with regular (non-ARC) audio extraction so I can use it to have more HDMI inputs if I need them. As a bonus any device plugged into it gets its full HDMI audio sent to the receiver including lossless formats. Not bad for $50 (ARC extractors are a lot cheaper than EARC extractors).
I once pondered the same Questions. And then I came to the realization that I will probably never use the built in apps on Tizen anyway so I really won't need eARC. Would it be nice? Sure, but no big deal to me. Our Q900r doesn't have Av1 support, so it's unlikely that if Netflix or Prime start streaming 8k that we will see it on our TVs OS anyway. You will likely buy an 8k streamer from Amazon, Nvidia, or Apple etc..

You will likely want to obtain an 8k receiver or soundbar anyway if you have two or more devices that will have HDMI 2.1 and need switching (since we only have the one port). Therefore it kind of renders the eARC useless.

I do wonder if our sets have the VRR, ALLM, QFT, and QMS that come along with HDMI 2.1. If we don't get eARC, then we may not likely have these other features. Seems like we could only get the benefit of 4k/120 and 8k/60
 

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Q90T too got a firmware update today...

The Q90T is on different firmware version. 1405 which is the same as the 2020 line. That's the one he's reviewing in the video . It's states on samsung's website that 1405.1 improved picture quality.
The one that dropped today for the 2019 didn't state that. Unfortunately
 

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I once pondered the same Questions. And then I came to the realization that I will probably never use the built in apps on Tizen anyway so I really won't need eARC. Would it be nice? Sure, but no big deal to me. Our Q900r doesn't have Av1 support, so it's unlikely that if Netflix or Prime start streaming 8k that we will see it on our TVs OS anyway. You will likely buy an 8k streamer from Amazon, Nvidia, or Apple etc..

You will likely want to obtain an 8k receiver or soundbar anyway if you have two or more devices that will have HDMI 2.1 and need switching (since we only ha
I do wonder if our sets have the VRR, ALLM, QFT, and QMS that come along with HDMI 2.1. If we don't get eARC, then we may not likely have these other features. Seems like we could only get the benefit of 4k/120 and 8k/60
I know for fact that this tv has vrr and allm because I use it daily with my Xbox one x with those features on. No clue if it has qms or qft?Pretty sure the device has to support those features as well in order for it to work so will find out with the up coming systems from Sony and Microsoft.
 

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Ok, I updated firmware to 1371. Not really sure what changed in this update except for one thing - In the Menu, now there is a new category added "Privacy", after the Support menu. Unless I missed it all these days, this seems to be a new menu item.
You did not miss it. I checked before I did the update, it was not there.
 

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Still horrible 50ms Inputlag in 8K/60Hz with Game-Mode.
Try and talk to @DestinLegarie on twitter. He's a tech journalist/video game reviewer from IGN with a Q900rb and a 3090, and from his twitter account, didn't post anything negative about playing Doom Eternal at 8k 60 on the set. Hope he has some insight.

1318259290461720576 ( twitter link)

scroll down to oct 2, he has a screen shot of Doom on a Q900rb

++

very interesting video on lag, theres a tool on the 3090 that will tell you what to adjust to get better response
 

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cant believe that there's still no confirmation of 8k youtube on series x or PS5...Im getting a HdHomeRun 4k so that'll do atsc 3.0, now I just need 8k youtube and ill be set. Adding a couple new boxes is much better then getting a new tv:)
 

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Made an EDID (Override) for Samsung Q950R to get back DSR on Nvidia. If you go 8K with Signal Input Plus than NV Driver deactivates DSR. Only if you stay in normal-mode Input on HDMI-4 you can get 4K/120Hz with DSR. And with my modded EDID you can get 4k/[email protected] DSR.
First, it's because regular 8K/60Hz mode has horrible 50-100ms Inputlag and those games which can run @8K/120FPS can do it in 120Hz. tablet.inf
 

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for anyone concerned, looks like many people have tested the Q900rb, and it can do everything the manual states...4k 120 HDR 4:4:4/ 8k 60 4:2:0 10 bit HDR and have low input lag at all resolutions.
 
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