LG 48CX OLED - 4K 120 Hz

mjones1 · 22 Sep 2020 at 10:46

Has anyone been using this “monitor” but cropping it so the display area is smaller?
This would be my single display used for gaming and work.

Chris [BEANS] · 22 Sep 2020 at 11:08

mjones1 said:
Has anyone been using this “monitor” but cropping it so the display area is smaller?
This would be my single display used for gaming and work.

I'm wondering the same... I currently use a 3440x1440 ultrawide monitor, and this is perfect (to me) for FPS. It'd be great to have this TV/monitor at 4k for almost everything, but crop the image right down to 3440 x 1440 when playing FPS. This 'should' give the same view, aspect, and frame rate as my standard 3440 x 1440 screen, right??

Or am I way off on this?

EDIT: This is a bit niche, so not worthy of a thread on here, but if anyone has any experience of using an OSSC with the 48CX I'd be interested to hear about it...

R3X · 22 Sep 2020 at 12:56

LG CX/C9 series will fix the 4K, 120 hertz, 4:4:4/RGB via a firmware fix in the next few weeks

Chris [BEANS] · 23 Sep 2020 at 14:05

mjones1 said:
Has anyone been using this “monitor” but cropping it so the display area is smaller?
This would be my single display used for gaming and work.

Chris [BEANS] said:
I'm wondering the same... I currently use a 3440x1440 ultrawide monitor, and this is perfect (to me) for FPS. It'd be great to have this TV/monitor at 4k for almost everything, but crop the image right down to 3440 x 1440 when playing FPS. This 'should' give the same view, aspect, and frame rate as my standard 3440 x 1440 screen, right??

Or am I way off on this?

Anyone?

Warbie · 23 Sep 2020 at 15:43

I'd like to know too. What happens if you choose 3440x1440 in Windows?

Dirk Diggler · 23 Sep 2020 at 16:03

1. Open NVIDIA Control Panel and click "Customize..."
2. Check box "Enable resolutions not exposed by the display"
3. Click "Create Custom Resolution"

Use following resolution

3840x1620

4. Aspect Ratio should be set to either "Aspect Ratio" or "No Scaling."

You'll also need to check the TV aspect ratio setting too.

MarkA · 23 Sep 2020 at 16:26

If this is wall mounted, any idea how good the sound is?

I have the c8 version and the I believe the sound is designed the same as previous models - whereas, its generated down and out using the stand. If I were to wall mount it in place of my current 49", It wouldn't have the stand, so wonder if anyone has wall mount tested the audio?

Cheers!

Chris [BEANS] · 23 Sep 2020 at 18:12

Dirk Diggler said:
1. Open NVIDIA Control Panel and click "Customize..."
2. Check box "Enable resolutions not exposed by the display"
3. Click "Create Custom Resolution"

Use following resolution

3840x1620

4. Aspect Ratio should be set to either "Aspect Ratio" or "No Scaling."

You'll also need to check the TV aspect ratio setting too.

Perfect! Thank you!

Warbie · 23 Sep 2020 at 23:02

Chris [BEANS] said:
Perfect! Thank you!

Does this give you black bars above and below the ultrawide image?

Minato · 24 Sep 2020 at 07:46

Gents, could you kindly confirm that (when firmware updates etc fix things) the 48CX supports 4K, 120Hz, GSync and HDR all at the same time over HDMI 2.1? I've seen some posts online recently which suggest that due to the 40gbps limitation of the CX you have to choose between GSync or HDR at one time.

jaju123 · 24 Sep 2020 at 08:39

Minato said:
Gents, could you kindly confirm that (when firmware updates etc fix things) the 48CX supports 4K, 120Hz, GSync and HDR all at the same time over HDMI 2.1? I've seen some posts online recently which suggest that due to the 40gbps limitation of the CX you have to choose between GSync or HDR at one time.

It should support all of those and is marketed to do so. At the moment there's a Gsync bug I believe which will be fixed by a firmware update. There's also a bug with chroma subsampling on the CX but not the C9. This should also be fixed in time I imagine. The 40gbps bandwidth is enough for 4k 120hz 4:4:4 10-bit, and gsync isnt bandwidth-dependent, so it should all be fine in that regard.

Chris [BEANS] · 24 Sep 2020 at 11:08

Specifically addresses use as a gaming monitor too...

Chris [BEANS] · 24 Sep 2020 at 11:21

Warbie said:
Does this give you black bars above and below the ultrawide image?

I don't have the TV yet, but yes, that's exactly what it will do.

What I am interested in, is the stand... If I sling this on a desk, with a keyboard directly in front of it, is there a gap/hole in the stand so that I can run the keyboard cable stright under it, rather than unattractively around it?

jubei · 24 Sep 2020 at 12:52

Chris [BEANS] said:
I don't have the TV yet, but yes, that's exactly what it will do.

What I am interested in, is the stand... If I sling this on a desk, with a keyboard directly in front of it, is there a gap/hole in the stand so that I can run the keyboard cable stright under it, rather than unattractively around it?

If the stand is the same as my c9 stand, that's a negative. But at the same time you are probably best served buying an arm/aftermarket stand for this anyway so that the screen is as far back on your desk as possible. The stand that is included is pushing the screen 25cm forward.

Warbie · 24 Sep 2020 at 14:30

Chris [BEANS] said:
I don't have the TV yet, but yes, that's exactly what it will do.

Cheers man. I'll be interested how you get on with this once you get one.

R3X · 24 Sep 2020 at 17:44

Chris [BEANS] said:
I don't have the TV yet, but yes, that's exactly what it will do.

What I am interested in, is the stand... If I sling this on a desk, with a keyboard directly in front of it, is there a gap/hole in the stand so that I can run the keyboard cable stright under it, rather than unattractively around it?

jubei said:
If the stand is the same as my c9 stand, that's a negative. But at the same time you are probably best served buying an arm/aftermarket stand for this anyway so that the screen is as far back on your desk as possible. The stand that is included is pushing the screen 25cm forward.

Once you go ~~black~~ wall mount you won’t ever go back

So liberating to have it pinned on the wall and save all that desk space, looks much neater and cleaner also, if you can naturally.

Marak · 24 Sep 2020 at 21:21

Chris [BEANS] said:
I don't have the TV yet, but yes, that's exactly what it will do.

What I am interested in, is the stand... If I sling this on a desk, with a keyboard directly in front of it, is there a gap/hole in the stand so that I can run the keyboard cable stright under it, rather than unattractively around it?

No, there is no gap for the keyboard cable sorry.

MarkA · 25 Sep 2020 at 08:19

Could go wireless keyboard...

mjones1 · 25 Sep 2020 at 08:55

Finally ordered mine, upgrading from a 27” 1440p hazro monitor but currently only have a gtx 1060. Thanks for the help guys.

I’m impatient and paid the extra £20 for it to arrive on Saturday, now to look at wall mounts & HDMI cables.

bimbleuk · 25 Sep 2020 at 09:00

Chris [BEANS] said:
I don't have the TV yet, but yes, that's exactly what it will do.

Warbie said:
Cheers man. I'll be interested how you get on with this once you get one.

Coincidentally I saw the YT vid about this yesterday and spotted this thread as I'm very interested in this TV/Monitor now.

In my previous experiments on monitor choice I bought a 40" UHD display direct from a South Korean manufacturer (we haze zero tax import agreements) as recommend by level 1 Techs. That monitor had a brilliant scaler which allowed me to setup various aspect ratios and I ended up playing Witcher 3 on a 37.5" 3440 x 1440 screen with black bars top and bottom. As good as 40" 16:9 was it was just too big to view from the distance I was seated. So I sold it and bought the 34" X34 Predator.

Now I want a bit more height again so this may fit the bill nicely as I can mount it further back.