[sblantipodi]

My monitor comes with a printed calibration report that is awesome and that meets what my i1 display Port colorimeter returns after the check.

My wife was amazed by my X32 FP and ordered another one for her.
The second X32 FP Is arriving on Friday. xD

[PCM2]

That’s good to know, thanks for confirming! I hope she enjoys hers as well, that way there won’t be any fighting over who uses the monitor. 😉

[Degrader]

Nice!

I’m just curious: You said that you don’t experience flickering issues with local dimming enabled. Did you also tried the Fast setting?

Yes, the one I had was also delivered with a calibration report.

[sblantipodi]

Hi, I have created three profiles with the colorimeter,

1) 120cd/m2, no dynamic dimming, 6500k, sRGB color space, native gamma
2) 160 cd/m2, no dynamic dimming, 6500k, sRGB color space, native gamma
3) 250 cd/m2, no dynamic dimming, 6500k, sRGB color space, native gamma

I have tried with that configuration and there is no noticeable flickering.

When using HDR contents I like to use factory defaults and there is no noticeable flickering during normal use, programming, web surfing, playing video games and watching videos even with fast setting.

There is no flickering is all the conditions I described. As I said I’m a monitor enthusiast and I had a log of high end monitors in past, I tend to see problems where others can’t xD

I haven’t tested the monitor with the older firmware because the first thing I made when I received the monitor was to update the firmware but reading on the internet I have seen users that said that most of the flickering problems has been solved by the latest firmware update.

Did you updated the monitor to .010 version?

Ps: I’m trying with HDR off and dynamic dimming active and still no flickering.

If you have a way to reproduce the problem please let me know and I’ll test it.

[PCM2]

I’ve merged your recent posts together, sblantipodi – so don’t worry, there aren’t 3 separate posts.

You were curious about the holding of posts before they’re live, which is a fair question. This forum doesn’t operate like most others – it’s an entirely unique resource which I moderate myself. I see it very much as an integral part of the website and I check through the content on that very carefully as well. This moderation behaviour gives me time to carefully read everything that is posted or proposed to be posted and also address any questions immediately after the post. I also like to add links in to relevant models and articles where applicable. This all makes sure that the forum is more valuable to others reading it – the posts and my responses flow in a logical order and relevant resources are linked to. I much prefer to do this before content is live, not retrospectively.

In most threads, people will be asking me questions directly so waiting for moderation doesn’t really inconvenience or feel unnatural there. This thread is different and a great example of user to user interaction and sharing of feedback, which I always encourage. 🙂 I don’t intend to change the moderation behaviour and holding of posts. I trust everyone who is kindly sharing their feedback in this thread, but I wouldn’t like to give everybody who posts on the forum free rein to post what they like, when they like. The forum software doesn’t give much flexibility in how this works – for example, different moderation behaviour for different threads or users. I appreciate it can be confusing, although everybody posting here should have read the rules thread before posting, which sets this expectation.

Degrader first mentioned flickering in this post and there are subsequent posts where they shared some examples where this occurred. This video from Shadow of the Tomb Raider is a nice demonstration of the behaviour.

[sblantipodi]

Ok thanks for the detailed answer, I appreciate it.

Regarding the flickering I’m not able to reproduce on grey contents, it could be interesting to find a scene like a YouTube video that is accessible to the public that make easy to reproduce the problem.

I have tomb raider but I don’t have the savegame for that particular scene that seems to be a bit more difficult than others.

[Degrader]

This scene is more at the beginning of Tomb Raider which is also a very demanding scene for the local dimming functionality: Flickering Adaptive Dimming Fast

Maybe you could try that? While I’m very sensitive to this type of flickering I saw other people saying (also at this forum) they experienced similar behaviour, but maybe not as extreme as me. And which graphics card do you have? Maybe this could also be a factor, that it may be more visible on a Nvidia card as I have a 3080 Ti.

[PCM2]

What’s the nearest Base Camp to the rainy scene?

[Degrader]

I could check that tonight, but the shown scene is from the demo and I don’t know if there’s a difference between the demo and the full version.

But here is a video of the full Demo, the rainy scène starts at 50:30 minutes:
Full Demo Gameplay

I hope that helps a bit.

[PCM2]

Aha. That’s after exiting the temple from the mission ‘Hunter’s Moon’, which is part of the game’s prologue. Annoyingly it seems you can’t go back there once you’ve completed that mission. Or maybe you can, but it would be difficult to find without the prompts you get the first time around. The other scene is indeed near the start of the game so easier to access. I’ll try to get to those scenes in the game so I can get back to them when my X32 FP arrives.

[Degrader]

That’s too bad! But the other scene (with all the candles and other small lights) is also a very good test.

I’m very curious about your findings with the X32 FP!

[sblantipodi]

Second monitor arrived, big flickering before the firmware update, flickering solved after the firmware update, on my tests image at least.

Unfortunately the monitor is going back due to bad pixels.

[sblantipodi]

I’ll test that scenes as soon as I can. That kind of flickering is normal in complex scenes like that with bright objects in a dark background.

It’s not a real flickering, it’s the LEDs lighting up a part of the screen and darkening it an instant later due to moving images.

This is FALD. If you don’t want that effect in complex scenes you need to buy an OLED or just work with the speed of the adaptive dimming.

I would not consider this an issue that can be solved with the fald technology.

[PCM2]

Sorry to hear about the bad pixels on your wife’s unit. Interesting that the firmware update seems to have made a dramatic impact in your case. Would be very interesting to see what you find on some of the Tomb Raider scenes (I’ll be looking at them when my Acer sample arrives as well). Are you using the ‘Fast’ setting or ‘Average’ for Adaptive Dimming?

[sblantipodi]

The video linked by degrader shows no flickering on my X32 at least my eyes can’t see it.
I tried every mode slow, average, fast, no flickering.

I’m using 250cd/m2 HDR OFF currently and I tried with HDR enabled.

https://youtu.be/G6qG1J19dLo
I don’t know if the fact that the video is highly compressed creates brighter shades that helps with the problem.

In any case on my two units it’s very very difficult to reproduce in real life, I have done extensive tests with films too with very dark shades and I see no flickering.

Seconds monitor goes back to the box for return now due to bad pixels, I hate bad pixels 🙁

[PCM2]

It’s good that you haven’t noticed any flickering in a range of scenarios. As for that video, it’s not an HDR video so it won’t be the same as observing the game itself under HDR. For SDR viewing, the compression and processing will indeed influence things and the shades won’t match the game itself properly.

I assume you don’t see any flickering when just watching the video, Degrader? Even with ‘Adaptive Dimming’ enabled under SDR?

[Degrader]

Well, I didn’t expect to see halo’s in this movie on my XG321UG in SDR, but I definitely see some. I’ve made a video of it (it is a little bit raw): Haloing local dimming in SDR XG321UG

But still that doesn’t say that the sample of sblantipodi is not hampered by flickering. You really should test it in HDR mode at full brightness in the game itself.

And on the sample I had the flickering occured on different firmware versions in the exactly the same manner. The version which the monitor was delivered (I assume this was version 009, although not sure) had flickering. Then I upgraded to 010, same flickering. And then I’ve even downgraded to 008, and I was sure that the downgrade was successfully as the color settings were locked in HDR (these are unlocked in HDR from version 010), but still flickering. So I find it curious that you did experience flickering with the delivered firmware version but not with the latest version. Could you tell us which graphics card you have?

[sblantipodi]

Please note that I haven’t done extensive tests with the “old firmware” but I noticed flickering during the Firmware update screen :O

I have a 4090.

[4KGalaxy]

I can also confirm I saw flickering on the X32FP with a bright object in a dark scenes in games like Sea of Thieves. It was present on “fast” and “average”. I agree it is the zones lighting up and dimming down very quickly, although I didn’t notice it nearly as much on other mini LED screens I tried like the Neo G7.

[PCM2]

Ironically, it seems like the monitor may be dark biasing too little for small bright shades with medium/medium-dark backgrounds. Though that would also have a negative impact on the bright shade, it happily dark biases far more if the background shades are sufficiently dark. More careful tweaking of the local dimming algorithm could theoretically alleviate it, but I’m not sure how easy it would be for Acer to fine-tune at that level with a firmware update. A greater number of dimming zones (obviously no firmware update could do that) can also make it less noticeable.

The Odyssey Neo G7 certainly shows this behaviour to a degree, by the way. You can see this on the desktop where there are flat static backgrounds. I didn’t notice it at all in-game on that model either, because the brightness change for the medium backgrounds isn’t significant enough to catch the eye in a potentially obvious way (outside of this static desktop environment with nothing else going on).

[Author]

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