LG 48CX OLED - 4K 120 Hz

[R3X]

For anyone with the latest Xbox 48CX, Vincent released a great video here with more settings to do:

(some PC settings may apply here also, so try them out and see if it makes any difference)

 

[Dirk Diggler]

@R3X is that video just for Xbox or are the settings for PC too?

 

[Things change I've changed]

Few questions for you guys,

1) Do you have windows HDR setting turned on in windows, if so why would you want HDR enabled for desktop? Doesn't HDR max out your OLED light which especially on the desktop could lead to burn-in?

2) If you have HDR disabled in windows and you load up a game with HDR, will windows enable HDR automatically like for example console games do?

3) What bit rate do you run at and your reason for doing so?

 

[R3X]

@R3X is that video just for Xbox or are the settings for PC too?

Well it's mainly for new Xbox owners settings but I think they also apply quite a fair bit to PC gamers/PC users, I fall under the PC user category but use most of his settings apart from his black levels on low setting.

I have always enabled hdmi 1 as PC device type, enabled hdmi ultra deep colour, Filmmaker mode (most detailed and accurate picture quality), OLED 35, black levels now @ low.

On the PC side of things, HDR enabled, then HDR Stream to enabled, then HDR/SDR brightness to 45, Nvidia control>change resolution I select choose nvidia colour settings:

32bit
8bit (10bit is better if you got Nvidia 3x card)
output colour mode: RGB
Output Dynamic range :FULL

Its always worked best for me, but having said that I had set my LG black to Auto and Vincent was right it should be set too low, not auto or high. I can now see videos correctly, I just thought auto would choose the correct black levels via source but nope YouTube dark videos now look more accurate with low setting.

I would say watch the video since it's got some surprises in it, maybe Xbox/PS game console owners did not even enable PC mode on their LG CX before so are missing out detail and higher quality picture, Vincent also said to switch off AMD freesync (for xbox owners) since it's already built into the xbox and you want Dolby Vision support.

Vincent is an ex TV calibrator so clearly knows his stuff, but if there are any better settings or anything wrong please mention it since we want the best CX picture quality possible.

 

[R3X]

Few questions for you guys,

1) Do you have windows HDR setting turned on in windows, if so why would you want HDR enabled for desktop? Doesn't HDR max out your OLED light which especially on the desktop could lead to burn-in?

2) If you have HDR disabled in windows and you load up a game with HDR, will windows enable HDR automatically like for example console games do?

3) What bit rate do you run at and your reason for doing so?

1: Yes should be switched on so you can experience HDR during Video and game playback, OLED light is different to brightness and contrast it really shouldn't burn out your panel even Vincent T (famous ytube TV calibrator) sets OLED light to 100 during daytime mode for his customers.

Course do what you need to prevent burnt in with static logos, taskbars, screensavers if you feel the many LG features won't protect you from burn in.

2:Yes HDR should kick in auto and switch off when not required I believe.

3:8bit has been standard, but now with newer consoles and PC graphic cards arriving we have 10bit colour so that would be better to choose 10bit.
If you do have any issues you can drop it down to 8bit. 10bit colour will give you less banding, more colours and better image quality.

 

[R3X]

https://www.forbes.com/sites/johnar...mp/?sh=4b0cb922241e&__twitter_impression=true


quote

"[Update: Since first publishing this article, I’ve also found that switching the LG OLEDs into PC mode for the Xbox Series X’s HDMI connection removes the instability issue (though black levels still look a little raised and noise levels remain quite high during dark scenes). To do this you need to choose Home Dashboard from the TV’s home screen, then select Settings, then choose Edit, and then click on the icon for the HDMI you’ve got the Xbox connected to. This will allow you to tell the TV to go into PC mode for that HDMI.]

 

[Dirk Diggler]

2:Yes HDR should kick in auto and switch off when not required I believe.

This isn't always the case.

Thanks for all your other input; I'm going to create a post with all the settings for people to reference. I think we've got enough knowledge in this thread now that we should have a definitive settings guide.

Will post it soon.

 

[MikeLoader]

This isn't always the case.

Thanks for all your other input; I'm going to create a post with all the settings for people to reference. I think we've got enough knowledge in this thread now that we should have a definitive settings guide.

Will post it soon.

Awesome buddy. Should be in first page. Would help out many, me included as it's hard holding track of All the info out there!

 

[sadbuttrue]

How are you guys happy with the ****-poor white uniformity and viewing angle shift when using as a PC monitor? It took 30 seconds before deciding this will be a media/gaming only display.

 

[Dirk Diggler]

Here's a starter for 10 regarding best settings. Please feel free to correct any errors or add any additional info you feel is relevant.

• These settings are based on a 48CX panel with Nvidia 3000 series GPU. Please feel free to suggest info for earlier Nvidia cards or AMD cards.
  
• The settings are for Gaming only.
• The text in yellow is open to discussion as these are specific to LG48CX and at time of writing I'm not 100% sure these are best settings.
• I've assumed Windows colour profile is to be default, however if anyone has a .icm file they want to share for their panel then let me know.
• I might transfer this to it's own thread if/when we agree it's a solid guide.

TV Settings
HDMI Input mode: PC
Picture Mode Settings:
- Preset: Game Note: This is essential for VRR to work properly, low latency etc.
- OLED Light: 100
- Contrast: 100
- Brightness: 50
- Sharpness: 10
- Colour: 55
- Tint: 0
- Advanced Controls
- - Dynamic Tone Mapping: On
- - White Balance:
- - - Colour Temp: Medium
- - - Method: 2 Points
- - - Point: High
- - - Red: 0
- - - Green: 0
- - - Blue: 0
- Picture Options:
- - Black Level: Auto
- - Motion Eye Care: Off
Energy Saving: Off
Aspect Ratio: 16:9
Additional settings:
- Eye Comfort Mode: Off
- HDMI Ultra HD Deep Colour: Enabled
- Instant Game Response: Enabled
- Filmmaker Mode Auto Change: Off
OLED Screen Saver:
- Pixel Refresher: Operate once when TV is off
- Screen Shift: On
- Logo Luminance Adjustment: High

NV Control Panel Settings
Manage 3D Settings:
- Vertical sync: On Note: Set Vsync to "Off" in game and consider limiting max frame rate to 118 (or 2 fps below chosen resolution)
Change Resolution:
- Resolution > PC > 3840 x 2160
- Refresh rate: 120Hz
- Use Nvidia Colour Settings:
- - Desktop colour depth: Highest (32 bit)
- - Output colour depth: 10 bpc
- - Output colour format: RGB
- - Output dynamic range: Full
Setup G-Sync:
- Enable for full screen mode

Windows Settings
Colour profile: Windows Default
Display settings:
- Use HDR: On Note: This should in theory mean that HDR is disabled for SD content, but you may have to manually disable it in certain circumstances.

 

[Things change I've changed]

Windows Settings
Colour profile: Windows Default
Display settings:
- Use HDR: On Note: This should in theory mean that HDR is disabled for SD content, but you may have to manually disable it in certain circumstances.

If you enable HDR in windows as far as I'm aware you'll have it activated all the time, including on the desktop, just hit settings and you'll find your oled using your HDR profile, which is fine if you don't mind your oled light being 100, personally I've opted to turn off the HDR windows setting because for the most part a there is only a minority of HDR games out anyway, some of them can turn it on, others I can turn it on before I play the game, also until I get my 3080 I've chosen to run at 8bit 444

 

[Dirk Diggler]

If you enable HDR in windows as far as I'm aware you'll have it activated all the time, including on the desktop, just hit settings and you'll find your oled using your HDR profile, which is fine if you don't mind your oled light being 100, personally I've opted to turn off the HDR windows setting because for the most part a there is only a minority of HDR games out anyway, some of them can turn it on, others I can turn it on before I play the game, also until I get my 3080 I've chosen to run at 8bit 444

Yes, HDR is a minefield because it basically just isn't supported properly in Windows. Depending on the use case, it will be toggled either way.

I'll reword that section, thanks for the feedback.

 

[Nexus18]

Not 100% sure on the settings for this particular lg model but for the 55/65" TVs, the settings should be as follows for best SDR and HDR usage:

- preset - technicolor all the time, it's the most accurate preset for colours/calibration (outside of proper calibration). Next point could very likely be wrong for this model given it's more aimed for pc gaming but.... game mode is just simply a preset that has all the post processing effects disabled but with a horrible colour hue to it, if you set the input connection to the "PC" icon, this enables PC mode, which will lock/disable all the post processing effects anyway (plus they should be disabled regardless)

- sharpness - again, might have changed but for older tv models, anything but 0 for sharpness is just over sharpening, although this won't take effect if edge enhancement is disabled (again may be different for this model, easy way to test is just to whack sharpness right up then go and toggle edge enhancement on/off)

- Colour format - generally for PC usage, it is always recommended to have RGB full and on the tv settings, if using HDMI, black level set to auto or if that option isn't present, then high

 

[Dirk Diggler]

@Nexus18 game mode is essential for Freesync/Gsync.

Your post has pretty much confirmed that my "guide" will be restricted to the CX models as e.g. preset Technicolour isn't an option with the CX models.

I'll have a look at the sharpness settings.

 

[R3X]

This isn't always the case.

Thanks for all your other input; I'm going to create a post with all the settings for people to reference. I think we've got enough knowledge in this thread now that we should have a definitive settings guide.

Will post it soon.

Windows HDR buggy again ?

Yeah I agree its not easy to get a handle of every setting wise, only issue I can see it being is we have different settings for every situation gaming, movies then day time and night time, I think that is why we don't have a guide almost and then everyone prefers different settings some find filmmaker mode too dark
etc

Also are you sure we should be using
Output colour format: YCbCr444
- - Output dynamic range: Limited

If it's in YCbCr mode it has to do more conversion to the CX which means more work and potential noise to the image, RGB is direct I believe so the cleaner and more detailed setting, also output dynamic range Id thought should be set on full if you want all the full colours to be displayed, limited can result in washy blacks. I guess one can try each setting and see which ones better though.

https://forum.doom9.org/showthread.php?p=1271416#post1271416

 

[Dirk Diggler]

Also are you sure we should be using
Output colour format: YCbCr444
- - Output dynamic range: Limited

I am not, it's probably the one setting I'm most confused with.

 

[R3X]

- Colour format - generally for PC usage, it is always recommended to have RGB full and on the tv settings, if using HDMI, black level set to auto or if that option isn't present, then high

I used auto also but like vincent T posted in his video above, he says the black setting should not be on auto or high it should be set on low for xbox at least, but I tested it on some videos and he was right now my blacks are more black while on auto it was more white and washed out.

Crazy that one setting can change the picture quality so much, really it's almost impossible to get settings right it seems even for us geeks haha

 

[R3X]

I am not, it's probably the one setting I'm most confused with.

Yeah, it's confusing to get it all right, I still like your idea of a guide but to get it right and for the right situation mind-blowing stuff, I would have liked a button you press and it just scans your source and adjust every setting each time automatic haha

 

[Things change I've changed]

I used auto also but like vincent T posted in his video above, he says the black setting should not be on auto or high it should be set on low for xbox at least, but I tested it on some videos and he was right now my blacks are more black while on auto it was more white and washed out.

Crazy that one setting can change the picture quality so much, really it's almost impossible to get settings right it seems even for us geeks haha

I agree, defo 'low' setting for blacks imo, I had grey blacks, washed out, and dithering/banding showing up in Alien Isolation, I flicked the blacks from Auto to Low and it fixed everything.

 

[Dirk Diggler]

I agree, defo 'low' setting for blacks imo, I had grey blacks, washed out, and dithering/banding showing up in Alien Isolation, I flicked the blacks from Auto to Low and it fixed everything.

I've noticed that with Watchdogs Legion it makes no difference, but with other stuff it does. I think maybe with fully supported HDR content it doesn't matter?