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G-Sync does not work at 4K/120 on the LG C9 OLED via HDMI 2.1 with my 3080
- Thread starter Rbk_3
- Start date
Yes, the CX/GX has also issues with G-Sync, just different ones.
G-Sync works since the latest OTA firmware update without flickering, but has issues over 100 FPS at 10 Bit, 120Hz and 4K (introduces stuttering).
G-Sync works since the latest OTA firmware update without flickering, but has issues over 100 FPS at 10 Bit, 120Hz and 4K (introduces stuttering).
So apparently LG Korea posted the new firmware on their site:
And it's supposed to be compatible with US sets? Don't try anything till confirmed, just relaying the info.
Edit: Installed on my US C9 and working perfectly so far. 4K/120 @ RGB Full 10-bit + G-Sync
And it's supposed to be compatible with US sets? Don't try anything till confirmed, just relaying the info.
Edit: Installed on my US C9 and working perfectly so far. 4K/120 @ RGB Full 10-bit + G-Sync
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I'm quite sure I'm at 10 bit, and I've been playing Forza Horizon 4 at 4k/HDR/120hz. Is the issue you've described widespread? I can't say I've seen this yet.
B9 UK user here and tried to request the beta firmware and LG's response wasn't to encouraging,
"Good Morning Robert,
Thank you for your email today, I hope you are well.
I have had a look into this for you and I can see that there will be an update rolled out in the upcoming months. As an Aftersales department we do not receive this update to send out to customers nor do we receive a release date for these, so I would not be able to send this out to you. I would recommend that you have your Automatic updates turned on, so that when released, your TV receives this and updates automatically. To do this you will need to go to ( Home > Settings > General > About this TV > Allow Automatic Updates).
I hope this makes sense and if you have any further questions regarding your unit, then please do let us know and we will be more than happy to help. If you do wish to discuss this further please do not hesitate to contact us on 0344 847 5454 or if you do wish to respond to this email, please do so by clicking on the "Save" button on the response page.
I hope my email has answered your query and assisted you today; I would really appreciate your feedback. If you have a few moments to spare, please may you complete the short survey at the bottom of this email which is based solely on my support. This is a score specifically on my email to you today and whether I have assisted you sufficiently."
:-(
"Good Morning Robert,
Thank you for your email today, I hope you are well.
I have had a look into this for you and I can see that there will be an update rolled out in the upcoming months. As an Aftersales department we do not receive this update to send out to customers nor do we receive a release date for these, so I would not be able to send this out to you. I would recommend that you have your Automatic updates turned on, so that when released, your TV receives this and updates automatically. To do this you will need to go to ( Home > Settings > General > About this TV > Allow Automatic Updates).
I hope this makes sense and if you have any further questions regarding your unit, then please do let us know and we will be more than happy to help. If you do wish to discuss this further please do not hesitate to contact us on 0344 847 5454 or if you do wish to respond to this email, please do so by clicking on the "Save" button on the response page.
I hope my email has answered your query and assisted you today; I would really appreciate your feedback. If you have a few moments to spare, please may you complete the short survey at the bottom of this email which is based solely on my support. This is a score specifically on my email to you today and whether I have assisted you sufficiently."
:-(
I'm fairly certain I had Gsync turned off. I was also only doing 4k/60, it didnt give me the option of going to 120hz, so making me wonder if my HDMI settings are wrong, or if the cable is not working.
I want to understand this. The CX is 10 bit panel. What's the logic, you don't trust the source to pick the right 10 bit dynamic range, you want it to send a 12 bit signal and have the TV pick the right 10 bit range? So basically the TV's downconversion is better than the source?
Its suppose to help eliminate colour banding even outputting a 12bit signal on a 10bit display. There is a wider range of colour from the source material. I have never seen any sample but that's what I kept reading. I think HDTV test may have touched on it on one of his LG Cx 40gb/s hdmi 2.1 limitation talk. I'm sure some expert here can explain better.
Update on the G-Sync stuttering fix
https://www.forbes.com/sites/johnar...s-to-fix-latest-oled-tv-nvidia-rtx-30-glitch/
https://www.forbes.com/sites/johnar...s-to-fix-latest-oled-tv-nvidia-rtx-30-glitch/
C9 US user. I tried as well. Got roughly the same spiel. Blah blah you're going to have to wait until november blah blah blah. Lame.
Anyone with a C9/E9 have the issue where 4:2:2 disappeared as an option? When I had my 2070 super installed, I could choose 4:2:2 at 12 bit, but on my 3080 I only get RGB and 4:4:4 at 120hz. At 60hz I only get RGB, 4:4:4, and 4:2:0.
If you're referring to the Korean firmware, that's for the C9.
Same. Upgraded, removed power from TV for ~15min. Powered back on and worked for me on the first go. Initially, I was seeing some flickering but it went away. Not sure if it was a time based thing, or it went away because I switched the input to PC mode. Either way, tested various games and everything is working great. Finally!
Just checked, Yeah only see RBG or 4:4:4.
Zeskit works for me 16' gets 120hz/4k/HDR/12bit/Gsync.
Just did the USB Korean update.
Got a little tense when 1/4th of the screen was a black bar despite having both the PC and TV unplugged for 10 minutes. Restarted my PC, labeled HDMI 1 to "PC", unplugged the tv again for a few minutes and it has been working like a charm.
I can also now confirm the Zeskit 8k HDMI along with the Korean update works incredibly. Feels like I'm just now getting to experience my 3090 despite having it for 2 weeks.
4k, 120fps, HDR, 12bit, Gsync, Instant Game response all indeed work flawlessly now. Not experiencing any stutter past 100fps neither so far.
Yep. same link I posted.Reddit - Dive into anything
www.reddit.com
To add to this, after FW update was complete, I disconnected the TV from power for about 10-15min, and removed the HDMI connection, pretty sure the HDMI part was unnecessary. Reconnected HDMI and powered TV back on. Once I was at my desktop, I changed the input to "PC." Using the Zeskit 6ft cable, and did not experience any issues after a few hours of playing/tinkering.
Yup! Copied the lg_dtv directory over to the USB drive and plugged it in before powering on TV. When the TV is powered on, it should detect the update.
Asking again because I've never installed firmware from a different region before, and I would love to do this today if possible.
Doesn't look like there's any downside atm.
It's listed on the Korean website, but it's meant for the PUA model of C9, meaning American sets.
There are several on this thread and the AVS forum that have done it and other than the tricky part of disconnecting the tv and pc for 10-20 minutes, or until it works, it's great!
Of course, assuming you have an HDMI cable that is true 48gbps. Also not sure how important it is to label your HDMI input as "PC" (without quotations).
I took all those steps and I have had no issues.
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My understanding is that the firmware is interchangeable between the 2 regions. So even after flashing this version, you should be able to update to a US release, whenever there is a newer version. They are supposed to be the same.
Excellent. Playing the latest Ori @ 4K/120 +HDR is a treat. Everything is, really.
I actually just beat the first Ori, so time to download the sequel and take a look at that HDR...
Nothing for EU yet?
Not sure if it's been posted before but this article also mentions issues when using VRR on the Xbox series x. https://www.eurogamer.net/articles/2020-10-15-living-with-the-xbox-series-x
Hopefully this is also solved in the new firmware.
Not sure if it's been posted before but this article also mentions issues when using VRR on the Xbox series x. https://www.eurogamer.net/articles/2020-10-15-living-with-the-xbox-series-x
Hopefully this is also solved in the new firmware.
There are already versions ahead of this preview version, so I suspect that there may be features disabled or things not working as intended - so they are waiting to clear that newer version
is this purely a gsync issue? or VRR in general? is it likely to affect ps5/xsx if they use VRR?
my CX just got the 3.11.25 update.
my CX just got the 3.11.25 update.
If Gsync is all up and running fine . Then VRR should me good to go. VRR has worked since launch with Xbox One S/X , but there hasn't been any 4K/120hz sources to try
Fingers crossed we get it before cyberpunk. I'm doing 1440@120hz still on the 3080. I have been getting some odd signal noise, color distortions and such on the 3080 I didn't get on my previous cards. Well find out if it's just the card or 3080 in general soon as I have a TUF that I'm switching to from Gigabyte and my friend is getting my Gigabyte.
what are you talking about?
i've only seen reports of issues if you connect an AV receiver.
Gsync on these displays are just branding. It's 100% VRR. I posted a link above that mention issues with VRR at 4K/120hz with the series x.
Yea on latest driver. Thr experience is mostly flawless aside from a brief flash when I open chrome or a new window for thr first time after I turn on the computer.
BRING ON CYBERPUNK.
Nice downloading the firmware and going to try it out. Do you happen to use Dolby Atmos? is that said to work at 120Hz? I can get it to work when I change the fps to 60 but doesn't when set to 120 for some reason. Got the Zeskit 6 foot cable as well and length seemed to have been the issue(downsized from 16ft version). Not sure if this is known issue with the pre gsync fix firmware, but happens with gsync off. Going to test after installing the update to see if it may resolve.
Edit: just realized the 77 inch model is different(C9PUB) from the presumably 65 and lower versions. Trying to scour the Korean site, but not looking too good. Going to hold off in that case just to be safe. Boo.
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