00_Zer0
Member
Apparently there is an issue with LG CX Oled TV's forcing Chroma Subsampling at 4k 120hz. 4:4:4 @ 4K120 isn't possible on the CX, and it forces 4:2:2 instead.
Here is a link to the article with a quote from it: The FPS Review
If you go to the link, there are other testimonies from Reddit, AVSForum, and HardForum with these same problems.
Unfortunately, in preparation of RTX 3080 and the new consoles, I just bought the 48 inch CX at Microcenter. The good thing is I haven't opened it yet and am within the returning deadline. I'm debating on getting a 55 inch C9. I would then get 4:4:4 back, and be able to use 12 bit color.
EDIT-took out false information. According to DanEON in this thread RTNGS never had a proper 2.1 source to test the C9, but confirms that with a HDMI 2.1 source VRR@120HZ should work fine, but waiting on RTNGS to get a 3080 so they can officially do more tests.
I would also like the ability to be able to use Freesync as LG never updated C9 for it, and it looks like they aren't going to. I have to say that for a $1500 TV whether C9 or CX, LG should update these TVs to satisfy there customers and get these issues fixed. Now what to decide...keep it, return it and get a C9 or return it and wait for something better. It seems any way I do it will be a difficult choice.
Edit-According to Vincent Teoh on HDTVTEST LG is working on firmware fixes for these problems on both 2019 and 2020 models. Thanks to FromDuskTillGameOver for the heads up.
Here is a link to the article with a quote from it: The FPS Review
The FPS Review said:If you’re thinking of pairing NVIDIA’s new flagship graphics card with one of LG’s CX Class OLED TVs, you may be in for a sub-optimal display experience. Users on AVS Forum, HardForum, and reddit are complaining about forced chroma subsampling in 4K/120 Hz mode, whereby uncompressed 4:4:4 signals are being delivered in 4:2:2. That’s a little odd for a display with HDMI 2.1 ports rated for 40 Gbps of bandwidth.
If you go to the link, there are other testimonies from Reddit, AVSForum, and HardForum with these same problems.
Unfortunately, in preparation of RTX 3080 and the new consoles, I just bought the 48 inch CX at Microcenter. The good thing is I haven't opened it yet and am within the returning deadline. I'm debating on getting a 55 inch C9. I would then get 4:4:4 back, and be able to use 12 bit color.
EDIT-took out false information. According to DanEON in this thread RTNGS never had a proper 2.1 source to test the C9, but confirms that with a HDMI 2.1 source VRR@120HZ should work fine, but waiting on RTNGS to get a 3080 so they can officially do more tests.
I would also like the ability to be able to use Freesync as LG never updated C9 for it, and it looks like they aren't going to. I have to say that for a $1500 TV whether C9 or CX, LG should update these TVs to satisfy there customers and get these issues fixed. Now what to decide...keep it, return it and get a C9 or return it and wait for something better. It seems any way I do it will be a difficult choice.
Edit-According to Vincent Teoh on HDTVTEST LG is working on firmware fixes for these problems on both 2019 and 2020 models. Thanks to FromDuskTillGameOver for the heads up.
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