LG 48CX OLED - 4K 120 Hz

Gino Giori · 22 Nov 2020 at 00:35

I ordered mine a few days ago, but it's back ordered till mid December (Best Buy USA). Have not been able to buy a 2.1 card. The AMD launch was a joke here in the USA. People really take us for idiot consumers. I was watching some HDR content (Magnetic fluids) as well as the Lg honey one on my TCL 6 series (2019) and the blacks are pitch black on this tv. I was wondering how the OLED could possibly get better than this? I did watch the Oled honey video (the LG demo) in store twice. It looked great, but not "hugely better" than on the tcl. Furthermore, one of my main monitors is an ASUS PB328Q. A color perfect monitor. I am so curious to see if the CX48 will be accurate. Anyway, getting all the other stuff ready (stand etc). I will also buy some ambient backlights.

Dinosaur · 22 Nov 2020 at 11:07

1st post (go easy lol)

I got mine yesterday, it's really amazing, only using on a 2080ti right now (so only 60hz @ 4k) but hoping to get a 30xx card soon. Image quality and colour is insanely good, especially moving away from a 165hz TN Panel.

Mine didn't have any smell or anything some of the others were talking about, no issues at all.

Dirk Diggler · 23 Nov 2020 at 09:12

COD4000 said:
Just installed. 3.11.30

Can you confirm this is on the 48CX? I ask because the version I have is 3.11.26 and the latest version on the LG website is 3.11.25

:confused:

Edit: what a coincidence, it literally just updated to 03.11.30!

peahead · 23 Nov 2020 at 10:08

Mine has just updated to 03.11.30 also but i can't see it referenced on the lg support site yet as to what it changed ? i know Vincent said a fix for VVR 120hz stutter was coming but his version was 03.21.03.

Dirk Diggler · 23 Nov 2020 at 10:19

peahead said:
Mine has just updated to 03.11.30 also but i can't see it referenced on the lg support site yet as to what it changed ? i know Vincent said a fix for VVR 120hz stutter was coming but his version was 03.21.03.

Yes, I just tested and 2560*1440 120hz has bad judder but 4k 120hz doesn't.

nvarsj · 23 Nov 2020 at 10:31

03.11.30 is the version which fixes the G-sync stutter. 03.21.03 is the engineering version so it won't match.

peahead · 23 Nov 2020 at 10:32

Dirk Diggler said:
Yes, I just tested and 2560*1440 120hz has bad judder but 4k 120hz doesn't.

So was 1440 120hz working fine before the new update ? i only ever tried 4K 120hz

nvarsj · 23 Nov 2020 at 11:11

Gino Giori said:
I ordered mine a few days ago, but it's back ordered till mid December (Best Buy USA). Have not been able to buy a 2.1 card. The AMD launch was a joke here in the USA. People really take us for idiot consumers. I was watching some HDR content (Magnetic fluids) as well as the Lg honey one on my TCL 6 series (2019) and the blacks are pitch black on this tv. I was wondering how the OLED could possibly get better than this? I did watch the Oled honey video (the LG demo) in store twice. It looked great, but not "hugely better" than on the tcl. Furthermore, one of my main monitors is an ASUS PB328Q. A color perfect monitor. I am so curious to see if the CX48 will be accurate. Anyway, getting all the other stuff ready (stand etc). I will also buy some ambient backlights.

Did you consider Costco? They have really good deals on this screen right now. Free 5 year protection, $200 off in gift cards, and cashback and an additional 2 year warranty with citi card. US gets all the good deals... :rolleyes:

Gino Giori · 23 Nov 2020 at 13:01

nvarsj said:
Did you consider Costco? They have really good deals on this screen right now. Free 5 year protection, $200 off in gift cards, and cashback and an additional 2 year warranty with citi card. US gets all the good deals...

I am looking into this. It seems their protection plan is the Allstate protection plan, and allstate does not cover burn in. I need to investigate

Dirk Diggler · 23 Nov 2020 at 13:23

peahead said:
So was 1440 120hz working fine before the new update ? i only ever tried 4K 120hz

No, it was the same before but I think it might be specific to AC Valhalla as I haven't tested in any other games.

4k 120 has worked fine since the last firmware update that enabled it 03.11.26

jubei · 23 Nov 2020 at 13:56

Has anyone mounted this on an arm and got a vesa adapter plate that fits without covering up any ports etc? the vivo plate i've seen recommended is not available in the UK so i'm looking for an alternative.

Also if anyone can recommend a known to work (4k 120hz 10bit) hdmi 2.1 cable that would be ace ta.

Dinosaur · 23 Nov 2020 at 13:56

Does 4k @ 120hz work fine with the 30xx cards? (HDMI 2.1)

Also, do you need a high quality cable to do 4k @ 120hz? or will a £4.99 HDMI cable work fine with 120hz 4k ?

Dirk Diggler · 23 Nov 2020 at 14:32

Dinosaur said:
Does 4k @ 120hz work fine with the 30xx cards? (HDMI 2.1)

Also, do you need a high quality cable to do 4k @ 120hz? or will a £4.99 HDMI cable work fine with 120hz 4k ?

@jubei

4k 120Hz works with 30xx cards. You need a quality cable like this one...

https://www.amazon.co.uk/dp/B088QMXTMV?

R3X · 23 Nov 2020 at 14:48

Anyone with their LG from John Lewis get the new firmware ?

Mine spent a few minutes updating then left it for a few minutes, switch it off and on and nothing its like it downloaded a ghost firmware !

jubei · 23 Nov 2020 at 15:11

Dirk Diggler said:
@jubei

4k 120Hz works with 30xx cards. You need a quality cable like this one...

https://www.amazon.co.uk/dp/B088QMXTMV?

ty that'll do nicely. I dont have the 3080 yet (like most people) but i'm assuming i can still use this cable with my 1080ti in it's normal hdmi and just run at 1440p 120hz until i do

Dirk Diggler · 23 Nov 2020 at 16:04

jubei said:
ty that'll do nicely. I dont have the 3080 yet (like most people) but i'm assuming i can still use this cable with my 1080ti in it's normal hdmi and just run at 1440p 120hz until i do

Yes, you can use it with a 1080ti as HDMI 2.1 is backwards compatible.

Minato · 23 Nov 2020 at 16:48

R3X said:
Anyone with their LG from John Lewis get the new firmware ?

Mine spent a few minutes updating then left it for a few minutes, switch it off and on and nothing its like it downloaded a ghost firmware !

Yes I got it this morning.

R3X · 23 Nov 2020 at 17:31

Minato said:
Yes I got it this morning.

OK cheers looks like my firmware failed then for some reason, certainly did not turn it off while download and updating like a motherboard bios update.

AORUS · 23 Nov 2020 at 21:10

Gino Giori said:
I ordered mine a few days ago, but it's back ordered till mid December (Best Buy USA). Have not been able to buy a 2.1 card. The AMD launch was a joke here in the USA. People really take us for idiot consumers. I was watching some HDR content (Magnetic fluids) as well as the Lg honey one on my TCL 6 series (2019) and the blacks are pitch black on this tv. I was wondering how the OLED could possibly get better than this? I did watch the Oled honey video (the LG demo) in store twice. It looked great, but not "hugely better" than on the tcl. Furthermore, one of my main monitors is an ASUS PB328Q. A color perfect monitor. I am so curious to see if the CX48 will be accurate. Anyway, getting all the other stuff ready (stand etc). I will also buy some ambient backlights.

Your TCL 6 Series is QLED so you can't compare the black levels to an OLED TV with ink blacks and the reason why you are updating your last year TLC -TV is because it doesn't support 4k @120hz gaming but the LG CX do with HDMI 2.1

AORUS · 23 Nov 2020 at 21:21

MarkA said:
Have you ever heard of the quote button? Don't have to write a post for every quote. Just click the quote and it'll get added to your current update.

yes I know that button but I am too lazy to use it sometimes