It's nice that they're adding G-Sync (though I'd much prefer freesync), but as stated it is strange that multichannel PCM, which is arguably more important for gaming, hasn't been announced. I guess "7.1 LPCM" isn't a buzzword to sell TVs.
IMHO it would be better if everyone sends something different. If we all use a similar sounding text people at LG might think that we are bots
So yea. Just make sure that your request includes stuff like: - We need 5.1/7.1 LPCM - Explain why you/we need 5.1/7.1 PCM (e.g. your AVR supports eARC but you do not want to buy a new AVR for 1500$ to use features of your C or because you want to use G-Sync without losing 5.1/7.1 surround sound) - Make sure to include a link to the petition and to this thread - Tell them you will return your TV if they do not fix it (+ you won't buy another TV from LG/another TV that uses an LG Panel). - Always be nice and friendly. Those people reading/answering our requests are poor guys doing the dirty work. - Tell them you'd be happy if they passed it on to the technicians/developers.
If possible, I'd also recommend mentioning the flawed implementation of Dolby passthrough from external sources to the soundbar / AV receiver using ARC or eARC. I believe this should be addressed at the same time as the 5.1/7.1 LPCM fix so that they don't need to go back and fix (and potentially break) other audio features.
Is there any chance we could have the petition updated to reflect this well documented issue as well? I don't mean to piggy back off the EDID issue, however, in a lot of cases people would prefer to use Dolby Atmos without suffering from significant audio delays rather than utilise 5.1 / 7.1 LPCM (although either option would be nice at this stage).
I had this order placed, thankfully I ran across this thread and was able to cancel it in time. I have a B6 and when I read the C9 had eARC which is supposed to support this, I was excited as it should mean I no longer have to run 2 HDMI cables and mess around with input sources when I want to game from my PC.
Well here's some false advertising for you. This is a response i've gotten from an LG engineer regarding the LG C9 TV:
2019 model TV support HDMI 2.1 and have 4 HDMI connections but only one of these can act as a 2.1 connection at any one time. Priority is given to the first 2.1 connected device, all other ports will act as 2.0. · All the devices you are connecting to your TV are HDMI 2.0 connection not 2.1 when they handshake the EDID data will configure the ports as HDMI 2.0 connections just because the TV supports HDMI 2.1 doesn’t’ mean you get any of the benefits. For this you need to connect a HDMI 2.1 device with a HDMI 2.1 cable to one of the ports on the TV. I don’t believe there are any currently. Samsung devices are not HDMI 2.1 certified so we can cannot guarantee their performance. Using eARC will increase the bandwidth on the cable which when running 4K 60 @ 444 this will exceed the bandwidth of HDMI 2.0 so it could possibly have drop outs and lag.
So apparently only 1 of the ports can act as HDMI 2.1 at a given time? And eARC only works on HDMI 2.1 ports, which i'm sure isn't true, as it's sent over the ethernet pins of HDMI 2.0.
@KingScooty I think your LG rep does not know what he is talking about. According to LG all 4 ports are bandwidth HDMI 2.1 ports. I do not think that this his changed.
I guess all he wanted to say is: As long as you connect a HDMI 2.0 device to your TV the ports will act as HDMI 2.0 ports. As soon as you connect a 2.1 device the ports will act as true 2.1 ports. I do not think that this is any different compared to older HDMI devices (e.g. HDMI 2.0 television + HDMI 1.4 console)
My understanding is that there are actually 2 hardware drivers in the tv, Vincent Teoh posted a picture or video several months ago. One is 2.0b and the other is 2.1. I believe that LG said a couple months back that the 2.1 driver is not actually activated yet, but will be activated later in the year (it was assumed it would be activated via a firmware update, but they might have just meant it would be activated when the first 2.1 devices hit the market.) The info from LG has been sparse and confusing at times. What the tech said above could actually be accurate. We may not actually find out until there are multiple 2.1 devices available for us to play with. Most of the time that wouldn't be an issue I think. Where I could see that being a problem is having, for example, a PS5 and an AVR with 2.1 both plugged into the tv. If you have an AVR with 2.1, you may have to plug all other 2.1 devices into the AVR.
A friend of mine got another answer from LG Germany (I posted the first answer a few pages ago):
Translation by DeepL:
"I've received feedback from the technical department. According to our technology department, a major update for eARC is planned towards the end of the year.
At the moment we can't tell if the desired LCPM codec will be included.
I would like to ask you to wait for the upcoming software updates on your TV set.
For further questions please use our web form on www.lg.com/de
If you reply directly to this e-mail, processing will only take place with considerable delay.
Yours sincerely"
Original answer:
"ich habe eine Rückmeldung von der Technik erhalten. Laut unserer Technik ist ein größeres Update für eARC gegen Ende des Jahres geplant.
Aktuell können wir aber leider nicht sagen, ob der gewünschte LCPM Codec dann mit dabei ist.
Hierzu darf ich Sie bitten, die kommenden Software Updates am TV Gerät abzuwarten.
Für weitere Rückfragen verwenden Sie bitte unser Webformular auf www.lg.com/deBei einer direkten Antwort auf diese E-Mail erfolgt die Bearbeitung nur mit starken Verzögerungen."
tl;dr:
LG is working on a major update for eARC. But they do not know if this will add 5.1/7.1 LPCM Support. Since they are talking about a "major update" I really hope this update will also include 5.1/7.1 LPCM...
Also note: There are some other problems with eARC as well. So these could be fixed (aswell).
Of course this is true . Now let us hope that this "major eARC update" will include a fix for our problem.
Maybe @JamalofLG has even more insight than the support guys from Germany since he is in contact with them since May. Maybe he knows if they plan to fix the 5.1/7.1 stuff with this "major eARC update".
Maybe we will never see a fix. Maybe "major eARC Update" later this year will include a fix.
Just make sure to send support tickets to LG to make them aware of this issue. I know that they probably know that some people want this feature. But the more people are complaing the more likely it is that this issue will be addressed in this update. At the moment we only know that they are working on some issues people have with eARC. But it has not been confirmed what issues they will address in this update.
Until we get a confirmation that this update will fix this issue make sure to send them tickets. This is even more important than signing the petition because a petition can be "overlooked". >100 customers that are sending tickets can not.
So I just found this out and am very unhappy that my return period is up. I would have gone with the Sony A8G if I had known about this earlier. In digging around, I found this note on Crutchfield's website:
Note: Your AV receiver or soundbar will also have to support eARC (Enhanced Audio Return Channel) to accommodate the playback of these high resolution audio formats. If your AV receiver or soundbar only supports ARC (Audio Return Channel), audio playback will be limited to Dolby Digital, DTS, and 5.1ch/2ch PCM.
I have already returned my eARC AVR I bought to go with the TV and am just using the TV speakers right now so I can't test. Can anyone confirm that with normal ARC you can get 5.1 PCM to an AVR or soundbar setup?
@fahrenheit388 Regular ARC is limited to Dolby Digital, Dolby Digital Plus, DTS and 2ch PCM. Enhanced ARC (eARC) can provide all audio codecs above this, such as Dolby TrueHD, DTS-MA, 8ch PCM (7.1), etc. I posted a video on Page 7 that highlights what can and can't be done with the current audio implementation on an LG OLED - to summarise, eARC functions the same as regular ARC for PCM at this point in time (limited to 2ch).
WoW, so we have to choose if we wanna play either using G-sync without surround sound, or to play with surround sound without G-sync plus high latency (since the AVR is between TV and PC).
Am I right?
Didn't think this would still be an issue after years that g-sync and freesync are out. Sad story!
Yea. You have to choose if you want to use G-Sync or if you want to use surround sound. With the announcement of G-Sync Support LG made Multi-Channel-LPCM even more important.
Samsung HW-Q96R has earc. Someone here who have this Soundbar? I think to bought this to my C9 and connect PC and Xbox to this TV and want Dolby ATMOS. Now I have HW-K950 and must connect Xbox to HDMI 1 on soundbar tog get ATMOS but lose VRR if I buy a RTX-card in the future (have GTX 1080 today),
Answers
Best answer we got so far...
But as long as we do not get a 100% confirmation that this issue will be addressed we must not
stop asking for this feature.
__________________________
Since this is the first post on page nine:
https://www.change.org/p/lg-electronics-lg-oled-c9-multichannel-pcm-over-earc
92 people already signed the petition.
Which is pretty impressive I think.
https://www.change.org/p/lg-electronics-lg-oled-c9-multichannel-pcm-over-earc
"LG have done a deal with Nvidia to add G Sync support to 2019 Oled range. should be out this year on C9 and E9. B9 to get this as well later on."
To have a perfect OLED gaming screen we need no limitation on HDMI-eARC pass-through.
Update:
See also here:
http://www.lgnewsroom.com/2019/09/lg-unveils-first-oled-tvs-to-support-nvidia-g-sync-for-big-screen-gaming-experience/
LG OLED TVs bekommen NVIDIA G-Sync-Update
They really need to add 5.1/7.1 PCM rather sooner than later...
Hopefully this is gaining traction now.
Lets keep it going!
IMHO it would be better if everyone sends something different.
If we all use a similar sounding text people at LG might think
that we are bots
So yea. Just make sure that your request includes stuff like:
- We need 5.1/7.1 LPCM
- Explain why you/we need 5.1/7.1 PCM (e.g. your AVR supports eARC but you do not want to buy a new AVR for 1500$ to use features of your C or because you want to use G-Sync without losing 5.1/7.1 surround sound)
- Make sure to include a link to the petition and to this thread
- Tell them you will return your TV if they do not fix it (+ you won't buy another TV from LG/another TV that uses an LG Panel).
- Always be nice and friendly. Those people reading/answering our requests are poor guys doing the dirty work.
- Tell them you'd be happy if they passed it on to the technicians/developers.
If possible, I'd also recommend mentioning the flawed implementation of Dolby passthrough from external sources to the soundbar / AV receiver using ARC or eARC. I believe this should be addressed at the same time as the 5.1/7.1 LPCM fix so that they don't need to go back and fix (and potentially break) other audio features.
https://lgcommunity.us.com/discussion/4622/audio-delay-for-hdmi-connected-dolby-sources/p1
Is there any chance we could have the petition updated to reflect this well documented issue as well? I don't mean to piggy back off the EDID issue, however, in a lot of cases people would prefer to use Dolby Atmos without suffering from significant audio delays rather than utilise 5.1 / 7.1 LPCM (although either option would be nice at this stage).
https://www.change.org/p/lg-electronics-lg-oled-c9-multichannel-pcm-over-earc
So yeah, LG needs to fix this!
· All the devices you are connecting to your TV are HDMI 2.0 connection not 2.1 when they handshake the EDID data will configure the ports as HDMI 2.0 connections just because the TV supports HDMI 2.1 doesn’t’ mean you get any of the benefits. For this you need to connect a HDMI 2.1 device with a HDMI 2.1 cable to one of the ports on the TV. I don’t believe there are any currently.
Samsung devices are not HDMI 2.1 certified so we can cannot guarantee their performance. Using eARC will increase the bandwidth on the cable which when running 4K 60 @ 444 this will exceed the bandwidth of HDMI 2.0 so it could possibly have drop outs and lag.
And eARC only works on HDMI 2.1 ports, which i'm sure isn't true, as it's sent over the ethernet pins of HDMI 2.0.
No idea what to make of this response.
I think your LG rep does not know what he is talking about.
According to LG all 4 ports are bandwidth HDMI 2.1 ports.
I do not think that this his changed.
I guess all he wanted to say is: As long as you connect a HDMI 2.0 device to
your TV the ports will act as HDMI 2.0 ports. As soon as you connect a 2.1 device
the ports will act as true 2.1 ports. I do not think that this is any different compared to older HDMI devices (e.g. HDMI 2.0 television + HDMI 1.4 console)
Translation by DeepL:
Original answer:
tl;dr:
add 5.1/7.1 LPCM Support. Since they are talking about a "major update" I really hope this update will also include 5.1/7.1 LPCM...
Also note: There are some other problems with eARC as well. So these could be fixed (aswell).
Now let us hope that this "major eARC update" will include a fix for our problem.
Maybe @JamalofLG has even more insight than the support guys from Germany since he
is in contact with them since May. Maybe he knows if they plan to fix the 5.1/7.1 stuff with this "major eARC update".
Maybe "major eARC Update" later this year will include a fix.
Just make sure to send support tickets to LG to make them aware of this issue.
I know that they probably know that some people want this feature. But the more people are complaing the more likely it is that this issue will be addressed in this update. At the moment we only know that they are working on some issues people have with eARC. But it has not been confirmed what issues they will address in this update.
Until we get a confirmation that this update will fix this issue make sure to send them tickets. This is even more important than signing the petition because a petition can be "overlooked". >100 customers that are sending tickets can not.
Also do not forget to link this thread plus the petition:
https://www.change.org/p/lg-electronics-lg-oled-c9-multichannel-pcm-over-earc
https://lgcommunity.us.com/discussion/4423/oled-c9-edid-limitation-regarding-hdmi-earc-pass-through/p1
https://ultra-hdtv.net/firmware-upgrade-fuer-lg-oled-tvs-steigert-gaming-ressourcen/
Note: Your AV receiver or soundbar will also have to support eARC (Enhanced Audio Return Channel) to accommodate the playback of these high resolution audio formats. If your AV receiver or soundbar only supports ARC (Audio Return Channel), audio playback will be limited to Dolby Digital, DTS, and 5.1ch/2ch PCM.
I have already returned my eARC AVR I bought to go with the TV and am just using the TV speakers right now so I can't test. Can anyone confirm that with normal ARC you can get 5.1 PCM to an AVR or soundbar setup?
Regular ARC is limited to Dolby Digital, Dolby Digital Plus, DTS and 2ch PCM.
Enhanced ARC (eARC) can provide all audio codecs above this, such as Dolby TrueHD, DTS-MA, 8ch PCM (7.1), etc.
I posted a video on Page 7 that highlights what can and can't be done with the current audio implementation on an LG OLED - to summarise, eARC functions the same as regular ARC for PCM at this point in time (limited to 2ch).
With the announcement of G-Sync Support LG made Multi-Channel-LPCM even more important.
Tested a few splitters a few months ago with my PC Monitor.
Same goes for DTS HD MSTR, Dolby True HD and all that stuff.
LPCM is the only problem.
If Samsung has not fcked up their eARC implementation
you should not have any problems.
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