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LG OLD NO G-SYNC AT 4K 120HZ

DickieSharpe

DickieSharpe

DickieSharpe

Associate
Joined
29 Oct 2019
Posts
51
Another wee miss step in the launch is that LG OLED's are currently not working properly when using HDMI 2.1 and the new 3080.

4k 120hz is working with 10bit colour BUT G-sync is not working as it should on the LG Tv's. Trying to enable G-sync causes black screen of death in all games.

https://www.resetera.com/threads/g-...-lg-c9-oled-via-hdmi-2-1-with-my-3080.289487/

https://www.avsforum.com/threads/20...aming-thread-consoles-and-pc.3123168/page-101

Hopefully this can be fixed by firmware for Tv or an updated driver for 3080.
 
Gsync is working great on my 3080 with a 2018 Samsung freesync QLED 55.

Very impressed with it. Just switch it on via the TV and the 3080 automatically detects it, no messing about it works straight away and it's very responsive very smooth gaming.

Mine is only 4k 60hz though no hdmi 2.1.

Still I was a little disappointed that on my QLED I can only select 422 10 bit and no 444 10 bit even though the TV can handle it. Hoping that nvidia add this feature.
 
The two main problems being reported appear to be as follows. First, users of both the LG OLED 9 and X series are reporting a complete loss of picture (a black screen) when attempting to apply Nvidia’s G-Sync variable refresh rate technology at 120Hz frame rates. This occurs regardless of which bit depth or resolution you choose.

The second issue seems to be restricted to X series models, and finds the TVs reducing signals output in RGB/120Hz/4:4:4 to 4:2:2 chroma subsampling. This happens irrespective of whether you have G-Sync active or not, or which output resolution you have selected. And it results in notable image degradation - as shown in the examples I was kindly allowed to reproduce here....

There’s evidence to suggest that the blacking out screen problem with G-Sync at 120Hz may not be limited to LG’s HDMI 2.1-equipped OLED TVs, and so could be an issue with the new Nvidia cards. Or perhaps even the current HDMI cables given that there aren’t currently any available that have received formal certification for 2.1 from the HDMI.org.
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https://www.forbes.com/sites/johnar...st-nvidia-rtx-30-graphics-cards/#599f88a4267a
 
Dirk Diggler said:
They support both.

Looks like I've got another reason to go AMD, they're starting to stack up. ;)
Click to expand...

I think perhaps they are G-Sync compatible which means they don't actually have G-Sync. The catch is in the word "compatible". Rather they are Freesync but Freesync is also supported by NVIDIA cards. Just NVIDIA call it Adaptive Sync rather than Freesync. And to make it worse in the configuration NVIDIA do refer to it as G-Sync Compatible. Confusing.
 
My thinking is that the solution will be on the Nvidia driver side as opposed to the LG firmware.

When G-sync compatibility was rolled out to these televisions in 2019 - it officially required both an LG Tv firmware update and a driver update from Nvidia. A beta driver came first from Nvidia and everything worked perfectly without any firmware update to the Tv.

Given this issue is on both CX and C9 (and possibly other 4k 120hz HDMI 2.1 devices) it suggests Nvidia may hold the key to fix this.

I would suspect they will pretty quickly as Tech Youtubers are already covering it and they have an official partnership with LG.

Sounds like a small HDMI 2.1 teething problem but at least I don't have to worry about it (yet) as I don't have a 3080 in hand!
 
LG has issued an statement

"LG has been made aware that some LG OLED TVs are experiencing certain compatibility issues with the recently launched Nvidia RTX 30 Series graphics card. An updated firmware has been in development with plans for a roll out within the next few weeks to LG's 2020 and 2019 HDMI 2.1 capable TVs, which should address these incompatibility issues. When ready, additional information will be available on the LG website and in the software update section of owners' LG TVs. We apologise for the inconvenience to our loyal customers and thank them for their support as we continue to push the boundaries of gaming technology and innovation."
 
ffletchs said:
LG has issued an statement

"LG has been made aware that some LG OLED TVs are experiencing certain compatibility issues with the recently launched Nvidia RTX 30 Series graphics card. An updated firmware has been in development with plans for a roll out within the next few weeks to LG's 2020 and 2019 HDMI 2.1 capable TVs, which should address these incompatibility issues. When ready, additional information will be available on the LG website and in the software update section of owners' LG TVs. We apologise for the inconvenience to our loyal customers and thank them for their support as we continue to push the boundaries of gaming technology and innovation."
Click to expand...

Good to know - hopefully the firmware will be out by the time my 3080 gets shipped :p
 
ffletchs said:
LG has issued an statement

"LG has been made aware that some LG OLED TVs are experiencing certain compatibility issues with the recently launched Nvidia RTX 30 Series graphics card. An updated firmware has been in development with plans for a roll out within the next few weeks to LG's 2020 and 2019 HDMI 2.1 capable TVs, which should address these incompatibility issues. When ready, additional information will be available on the LG website and in the software update section of owners' LG TVs. We apologise for the inconvenience to our loyal customers and thank them for their support as we continue to push the boundaries of gaming technology and innovation."
Click to expand...

Good stuff, quick acknowledgement of the problem and a promise to fix it.
 
ffletchs said:
LG has issued an statement

"LG has been made aware that some LG OLED TVs are experiencing certain compatibility issues with the recently launched Nvidia RTX 30 Series graphics card. An updated firmware has been in development with plans for a roll out within the next few weeks to LG's 2020 and 2019 HDMI 2.1 capable TVs, which should address these incompatibility issues. When ready, additional information will be available on the LG website and in the software update section of owners' LG TVs. We apologise for the inconvenience to our loyal customers and thank them for their support as we continue to push the boundaries of gaming technology and innovation."
Click to expand...

That's good to hear, seems my gamble on the 'cheaper' B9 might of paid off!
 
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