LG CX (C10) OLED 2020 Thread

newbiejim · 11 Nov 2020 at 22:30

Pulled the trigger on the CX 55 from JL, rationale being I can price match if cheaper on BF + it's £200 cheaper than the 48 + ordering now avoids potential BF stock/delivery issues.

aoaaron · 12 Nov 2020 at 18:59

Scythe said:
Watching closely at the moment, new house purchase on Monday and this will be ideal! Tempted to go to Curry's as my partner gets 6% off making it £1691, and any further reductions before BF gets the difference refunded.

Get the 77’’ mate! Celebrate the house purchase!

HEADRAT · 13 Nov 2020 at 07:15

kinger8938 said:
A user a few pages back had a similar dilemma, went big as it was cheaper etc but after setting it up seemed to feel like I the 48 would have been the better buy

Yeah by lounge is pretty "snug" so I'm leaning towards 48", even with my "man eyes" 55" would just be too big for the room.

newbiejim said:
Pulled the trigger on the CX 55 from JL, rationale being I can price match if cheaper on BF + it's £200 cheaper than the 48 + ordering now avoids potential BF stock/delivery issues.

Good plan, I'm going to pull the trigger on a 48 LG CX and a SONOS ARC today.

peahead · 13 Nov 2020 at 14:27

Does anybody else think the inbuilt speakers on the CX are rather good ? i am playing the new COD game and i quite impressed with the sound they can produce.

dudewheresmybrain · 13 Nov 2020 at 16:33

has anyone with a CX and a 30 series card managed to get 120hz working? I have the option in nvidia control panel, but as soon as I click accept, it reverts back to 60...

ghutchison14078 · 13 Nov 2020 at 16:51

dudewheresmybrain said:
has anyone with a CX and a 30 series card managed to get 120hz working? I have the option in nvidia control panel, but as soon as I click accept, it reverts back to 60...

Yep, 120Hz working fine on my 55 CX and RTX 3080.

Is your HDMI cable 40GBps certified?

dudewheresmybrain · 13 Nov 2020 at 16:56

ghutchison14078 said:
Yep, 120Hz working fine on my 55 CX and RTX 3080.

Is your HDMI cable 40GBps certified?

potentially not... it did say 48gbps 8k supported, but I've ordered another from amazon to try with. Failing that, I will test with my ps5 cable when that arrives next week.

I did at some point (no idea how) get it to stay on 120hz but then there was no signal on the screen - so it could be the cable I guess!

dudewheresmybrain · 13 Nov 2020 at 16:58

ghutchison14078 said:
Yep, 120Hz working fine on my 55 CX and RTX 3080.

Is your HDMI cable 40GBps certified?

Also just to check, I only get the 120hz mode appear at all with the deep colour and instant gaming settings on, is that correct?

SDK^ · 13 Nov 2020 at 17:31

Which 2.1 HDMI cable is the one to get for PC Gaming @ 120Hz on the LG OLED?

ghutchison14078 · 13 Nov 2020 at 18:21

SDK^ said:
Which 2.1 HDMI cable is the one to get for PC Gaming @ 120Hz on the LG OLED?

Search the Rainforest for " 2M HDMI 2.1 Cable 48Gbps by True HQ "

Working perfectly with my CX and RTX3080

ghutchison14078 · 13 Nov 2020 at 18:30

dudewheresmybrain said:
Also just to check, I only get the 120hz mode appear at all with the deep colour and instant gaming settings on, is that correct?

Yes, the "HDMI deep colour" setting enables the HDMI port right up to full 4K@120Hz HDR bandwidth.

These are my Nvidia settings

If you want to verify that the TV is getting the full 4K 120Hz signal, just press the green button on the remote several times in quick succession and you will get this little window pop up that shows the current signal its receiving on that HDMI input.

3840x2160P @ 120hz
RGB 10 bit 4L10 (4L10 means 4:4:4 Chroma)

ghutchison14078 · 13 Nov 2020 at 18:35

I used this video from Vincent Teoh (HD TV test) to fine tune my settings.

Although its titled for Xbox series X - the settings are ideal for PC gaming config on the CX too.

https://www.youtube.com/watch?v=5Y9qcXMQg_s

SDK^ · 13 Nov 2020 at 19:10

ghutchison14078 said:
Search the Rainforest for " 2M HDMI 2.1 Cable 48Gbps by True HQ "

Working perfectly with my CX and RTX3080

Thanks

dudewheresmybrain · 13 Nov 2020 at 20:25

ghutchison14078 said:
Yes, the "HDMI deep colour" setting enables the HDMI port right up to full 4K@120Hz HDR bandwidth.

These are my Nvidia settings

If you want to verify that the TV is getting the full 4K 120Hz signal, just press the green button on the remote several times in quick succession and you will get this little window pop up that shows the current signal its receiving on that HDMI input.

3840x2160P @ 120hz
RGB 10 bit 4L10 (4L10 means 4:4:4 Chroma)

Thanks for that

I’ve just had the second cable arrive and tried mirroring your settings... the result, tv no longer detected haha! I will see how the ps5 fares once that turns up.
I think it’s the change to 10bit that causes signal to go. Would that point towards the cable?

zuludawn · 13 Nov 2020 at 20:26

dudewheresmybrain said:
has anyone with a CX and a 30 series card managed to get 120hz working? I have the option in nvidia control panel, but as soon as I click accept, it reverts back to 60...

Have 2080 super and I'm not sure whether or not the latest NVidia driver has enabled 120 at 4k, because I was messing with FarCry new Dawn last night and I'm sure it was not enabled but is now. Also found out that some HDR settings only allow 60 as default and others 120. Using these cables

https://www.amazon.co.uk/gp/product/B07ZMBBH3B/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

ghutchison14078 · 13 Nov 2020 at 20:30

zuludawn said:
Have 2080 super and I'm not sure whether or not the latest NVidia driver has enabled 120 at 4k, because I was messing with FarCry new Dawn last night and I'm sure it was not enabled but is now. Also found out that some HDR settings only allow 60 as default and others 120. Using these cables

https://www.amazon.co.uk/gp/product/B07ZMBBH3B/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

2080 Super only has HDMI 2.0 ports.

You need an RTX 3000 series card for 4K @ 120Hz. (HDMI 2.1 output port)

zuludawn · 13 Nov 2020 at 20:36

ghutchison14078 said:
2080 Super only has HDMI 2.0 ports.

You need an RTX 3000 series card for 4K @ 120Hz. (HDMI 2.1 output port)

Does it playing games on it now. Would it be cause its a Laptop Alienware Area 51 ?

ghutchison14078 · 13 Nov 2020 at 20:38

Must be as you're running 8-bit colour and 4:2:0 chroma, the cut down signal must be enough to squeeze 4k 120hz down the hdmi 2.0 connection.

LuckyBenski · 13 Nov 2020 at 20:41

ghutchison14078 said:
Must be as you're running 8-bit colour and 4:2:0 chroma, the cut down signal must be enough to squeeze 4k 120hz down the hdmi 2.0 connection.

This works down to 10 series at least. I run the same setup on a 1070 and switch between this, and 1080p HDR.

zuludawn · 13 Nov 2020 at 21:20

ghutchison14078 said:
Must be as you're running 8-bit colour and 4:2:0 chroma, the cut down signal must be enough to squeeze 4k 120hz down the hdmi 2.0 connection.

Cannot pretend to understand this but I guess it not hurting performance to much, that's with HDR-10 as well if that makes any difference. Not for a Laptop anyway