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LG CX OLED auto dim help

My friend just buy LG CX48 OLED not too long ago and he doesn't like it one bit. One issue with this OLED that I discovered later on is that it has a basically terrible brightness in SDR mode (250 nid and less) and just decent in HDR, which make it horrible as a PC gaming monitor but worst part is the TV keep dimming itself no matter what setting which make the image quality suffered even more. 

 

I am trying to find a way to improve his experince, brightness can be fixed somewhat by just using a TV mode, but auto dimming is a massive pain and I can't find anyway to fix it until now, do you have any good advice I could try?

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that what happens when big channels like LTT covers  a niche product and ignore its problems

when I commented on their video about this they ignored it

I was excited to buy this TV but the ABL issue (its what you're talking about) is what made change my mind and wait for an oled or newer tech monitor

can your friend return the TV ?

 

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18 minutes ago, e22big said:

One issue with this OLED that I discovered later on is that it has a basically terrible brightness in SDR mode (250 nid and less) and just decent in HDR

  Is he in a rather bright room? He can try turning up "OLED Light" and "Peak Brightness" settings if he hasn't done so already.

15 minutes ago, e22big said:

but worst part is the TV keep dimming itself no matter what setting which make the image quality suffered even more. 

That's the ABL (Auto Brightness Limiter) feature (changing the Peak Brightness setting will change its behaviour as well). Technically it can be disabled through a service menu, but it's there for a reason. Not sure how bad it is on a CX, but on my C9 it's hardly ever noticable.

 

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22 minutes ago, e22big said:

worst part is the TV keep dimming itself no matter what setting which make the image quality suffered even more. 

I initially had a similar problem with the B9 when I got it. There is a menu setting that disables it but I can't remember what it was called. It might have been the eco mode thing.

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17 minutes ago, Gorou92 said:

that what happens when big channels like LTT covers  a niche product and ignore its problems

when I commented on their video about this they ignored it

I was excited to buy this TV but the ABL issue (its what you're talking about) is what made change my mind and wait for an oled or newer tech monitor

can your friend return the TV ?

 

yeah, and to be fair, even without ABL, SDR brigtness in this monitor is barely usable - and as a monitor and not TV, SDR is absolutely important as you can't just use HDR in Windows all the time

 

to be fair, I did see that it was quite bad in rting but didn't really see that it is 250 nit bad

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2 minutes ago, tikker said:

  Is he in a rather bright room? He can try turning up "OLED Light" and "Peak Brightness" settings if he hasn't done so already.

That's the ABL (Auto Brightness Limiter) feature (changing the Peak Brightness setting will change its behaviour as well). Technically it can be disabled through a service menu, but it's there for a reason. Not sure how bad it is on a CX, but on my C9 it's hardly ever noticable.

 

I haven't go to see it at his place either but he said it's bad - like the monitor just dim to the minimum whenever he used flashy attack pattern in Monster Hunter

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3 minutes ago, porina said:

I initially had a similar problem with the B9 when I got it. There is a menu setting that disables it but I can't remember what it was called. It might have been the eco mode thing.

Just had a quick look through the menu on mine, it might be Energy Saver. Instead of Auto it is on Medium. I don't notice brightness changes in actual use, but if left idle with a static image for some time it dims slightly and returns once there is activity.

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TV Gaming system: Asus B560M-A, i7-11700k, Arctic eSports 34 duo, Corsair Vengeance Pro RGB 3200 2x16GB, MSI 3070 Gaming Trio X, EVGA Supernova G2L 850W, Anidees Ai Crystal, Samsung 980 Pro 2TB, LG OLED55B9PLA 4k120 G-Sync Compatible
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Gaming laptop: Lenovo Legion, 5800H, DDR4 3200C22 2x8GB, RTX 3070, 512 GB SSD, 165 Hz IPS panel


 

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3 hours ago, porina said:

Just had a quick look through the menu on mine, it might be Energy Saver. Instead of Auto it is on Medium. I don't notice brightness changes in actual use, but if left idle with a static image for some time it dims slightly and returns once there is activity.

cool I'll let him know and may be trying it out myself

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If brightness is an issue, ensure u dont have BFI enabled. you'll loose some moving picture clarity, but gain normal brightness back.

 

250nits 'should' be enough, unless ur in a bright room, in which case OLED probably wasnt the best choice.

OLED is still developing in the brightness department, upcoming OLEDs should have a 20% boost for basic models, a new upcoming Sony top end model has been measured at 1300nits.

 

Disabled ASBL* in the service menu. You'll need a IR blaster equipped device to use the Service App or a Service remote (u can buy from amazon/ebay)

 

ASBL is what will be kicking in when using the Display for browsing and text documents.

 

ABL** can NOT be disabled but you can reduce its effectiveness by running with OLED light at ~60%, however since ur complaining about brightness this probably isnt an option.

 

*Automatic Static brightness Limiter

** Automatic brightness Limiter

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  • 4 months later...

I'm sorry to perhaps resurrect an old thread, but is there a way to have ABL e.g. kick in after say 3-5 seconds of all white image instead of instantly?

 

I'm playing Soul Calibur 6 and whenever there's a KO, the screen briefly flashes (as it's supposed to), but it turns gray whenever it happens.

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15 hours ago, IgorDe said:

I'm sorry to perhaps resurrect an old thread, but is there a way to have ABL e.g. kick in after say 3-5 seconds of all white image instead of instantly?

 

I'm playing Soul Calibur 6 and whenever there's a KO, the screen briefly flashes (as it's supposed to), but it turns gray whenever it happens.

not sure if you could do that, as it turn out, ABL adjustment on CX OLED wasn't obvious at all, even trying to leave it off wasn't that easy - guess you will have to experiment and see if any works

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