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Review here: https://tftcentral.co.uk/reviews/lg-ultragear-evo-27gm950b

SDR setup

Use these settings if you want to run with the native colour space for a more vivid and colourful image. You can combine with our calibrated ICC profile which will clamp back to sRGB for colour aware applications though.

Game preset = Gamer 1

Brightness = 19 for ~120 nits, but set this to whatever you find appropriate

Contrast = 70

Gamma = mode 2

Colour temp = Custom

RGB levels = 48, 50, 50

ICC profile attached below

sRGB emulation

If you want to clamp to sRGB all the time for all applications, games etc then you can use the following settings. This is good for SDR content and improved colour accuracy, but it will look less vivid (by a lot) compared with the native mode.

Game preset = sRGB

Brightness = adjust to suit, but you can use 19 for ~120 nits

Contrast = 70

RGB = 49, 50, 50

DCI-P3 emulation

If you want to clamp to DCI-P3 all the time for all applications, games etc then you can use the following settings. This is good for a somewhat reduced colour gamut compared with native, or for working with HDR content potentially.

Game preset = DCI-P3

Brightness = adjust to suit, but you can use 19 for ~120 nits

Contrast = 70

RGB = adjust this to 45, 48, 55 to balance white point properly

Gaming

Response time = 'Fast' for all situations

Black stabilizer = this doesn't raise black point in any mode so you can experiment with this for darker gaming and content. moving it up to 70 seems a nice balance between improving shadow detail, without over-brightening dark shades too much.

Local dimming (in SDR mode) = you can enable this for dynamic content like gaming and multimedia but we wouldn't recommend it for static apps. All 3 settings behave very similarly, so experiment. The high mode is fine to use and probably easiest for slightly better dimming control.

Adaptive-sync = On (extended mode) - unless you have any specific issues with VRR in which case you could switch to standard mode, but we didn't face any.

AI Upscaling = it doesn't really work for PC inputs (see review for more info) but no real harm in leaving it turned on. For external inputs like consoles and media streaming devices it works really well, especially for lower resolution content. Set it to 'high' for those.

AI Scene selection = turn on if you want it to switch modes for different content, but you'll probably want to leave it off if you're using our recommended settings and calibrated profile

HDR

Game mode = Gamer 1

Brightness = 100

Sharpness = 50

Colour temp = Manual. 0 is slightly cool, W1 is slightly warm so choose which you prefer, both are pretty close to a D65 white point anyway

Dynamic Tonemap = On (for a brighter overall experience)

Local dimming = High

Black equalizer = this doesn't raise black point in any mode so you can experiment with this for darker gaming and content. Like SDR mode, moving it up to 70 seems a nice balance between improving shadow detail, without over-brightening dark shades too much.

Files

Comments

Spacebar

Thanks for this. Have you tried this with Mac? How about non-gaming use cases? Like photo editing etc.

TFTCentral

No we don’t have a Mac system to check that. Certainly very usable for non gaming thanks to the very high pixel density

Spacebar

I meant, best settings for non-gaming use cases.

TFTCentral

Oh sorry I see now. These settings are aimed at best accuracy so they would still be most suited

Steven Austin

So far I'm not enjoying my experience. The whole reason I got it was the FALD, but it seems really buggy . I have only had it for a few days, but not really happy the picture quality in MacOS. I am hopeful it will get better with a few firmware updates.

TFTCentral

Can you elaborate on what you mean by “buggy”? You’re not leaving local dimming enabled all the time are you, for desktop apps and static content?

Davin Park

Is the local dimming that bad? Not even local dimming on low is recommended for desktop/productivity use?

TFTCentral

I’ve never seen any mini led local dimming look good for desktop apps, I wouldn’t recommend it myself

Davin Park

I see. I planned to buy this monitor for my macOS for 99.5% SDR usage and dual-mode high-refresh-rate gaming. Would it be better to buy a cheaper IPS model (i.e., Samsung's G8 G80HF) instead of this since I won't be using the local dimming on the LG 27GM950B?

TFTCentral

Well it’s certainly useable for gaming so that’s maybe worth considering still.

Davin Park

I see most local dimming desktop demos in dark mode; how is it in light mode? Is the algorithm still bad?

TFTCentral

It’s not really the algorithm , it’s the zones trying to handle very small changes and image details like borders in windows, your mouse cursor etc. that’s always a challenge on mini LEDs, but I don’t really see tbh why you’d need to use it for desktop apps anyway. The increased contrast and deeper blacks makes little difference for that kind of content, and you’d probably rarely experience them anyway. That’s far more relevant and beneficial for HDR multimedia and gaming.

pritster5

This monitor is so close to being a perfect endgame display. I really wish they opted for a highlight biased algorithm rather than a shadow/contrast biased one. The algorithm, even on local dimming Low (the best balance IMO, you get 90% of the contrast benefit), actively crushes highlight detail resulting in a softer images that collapses color information. White edges on things like a chameleon's skin get blended in with the surrounding skin detail, causing an inaccurate scene. LD Low is the only mode that should be used in SDR or HDR imo. Blooming even occurs naturally due to how the human eye works, it's a much easier artifact to get used to than literally destroying information in the frame. Dynamic tone map could solve the issue but it simply isn't accurate and blows out/clips highlights. With some firmware changes to allow more customizeability here, it could be perfect .

Brandon Maya

Is there any specific settings you recommend for Mac?

TFTCentral

I'm sorry, we don't have a Mac system for testing, but the general settings here should still serve you well from a monitor point of view.

pritster5

3$ for these settings is highway robbery. The chimolog reviewer from Japan literally provided 3D(+1D) LUT's to use with a windows DWM utility to correct the 27GM950-B's right shifted PQ EOTF tracking, fixing the dim HDR experience on this monitor, all for free.

TFTCentral

Good for them. Not everyone wants to use such convoluted corrections. We spend a huge amount of time, money and effort with our testing and reviews, and to provide these settings to help people. If you can’t spare $3 to support the work we do, and help us continue to do that work in the future, when you’ve spent $1000 on a new monitor, that’s a real shame.

pritster5

I have no problem supporting a channel for quality work it provides, which TFTCentral absolutely does. What I have a problem with is paywalling things like this that do not warrant what they cost.

luis ocadis bedoya acosta

The settings work, they are good, in MacOS it works perfectly, but when activating the HDR, it is a problem since it does not handle it like the macbook, but I feel that it lacked more or well I expected more... in When the HDR on the XBOX console, when calibrating it, in the first small white box, it rises to 3040/3050 so that it is completely white, I decided to leave it at what really is 1000 nits... could this be due to?

TFTCentral

The numbers being reported to tools like that by the monitor may be strange, they often vary or often don't make sense at all. I'd probably just follow the visual guidance and ignore the reported number to be honest, that should take care of tone mapping properly from there.

luis ocadis bedoya acosta

Well, I was investigating and apparently that gives different values and does not necessarily coincide with the nits of the monitor, also the AI indicates that, when the Dynamic Tonemap is activated, it is recommended in the calibrator to leave it at 1250, and when this option is deactivated, if it is better to use the HDR calibrator with the naked eye, otherwise I see that it works very well, I liked it with the Dynamic Tonemap activated, so in the xbox I left at 1250