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Hyperion
Asteroid

Re: Brightness changes with subtitles

I purchased the 75" Q8FN, and am seeing light/dark fluctuations, quite obviously happening with subtitles.  How can Samsung *not* notice this?  How are more reviewers not calling this out??  Pausing netflix causes all kinds of these fluctuations, but it also happens in many dark scenes, appearing as roaming patches of dark 'clouds' and sometimes vignetting.  Its very pronounced at factory reset settings, but can be somewhat improved by turning off ALL the eco, dynamic, & auto settings switch to Movie instead of Standard, but its still there, just less often. 

 

I've spoke with a Samsung rep, and he asked me to email him my settings, and then some netflix examples of where its showing, which seems like a fools errand since it so easy to spot.  I was hoping that I just had a defective unit, but it seems fairly widespread from these comments and HDTVTests review.  If they can't solve it within my extended refund time, I'm returning it. 

 

I paid $5000CAD for this TV, this should not be happening.  This is my 4th Samsung TV..  If this is the state of their flagship product, I wonder if it will be my last?

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userJHRNiUEfei
Constellation

Re: Brightness changes with subtitles


@Hyperion wrote:

I purchased the 75" Q8FN, and am seeing light/dark fluctuations, quite obviously happening with subtitles.  How can Samsung *not* notice this?  How are more reviewers not calling this out??  Pausing netflix causes all kinds of these fluctuations, but it also happens in many dark scenes, appearing as roaming patches of dark 'clouds' and sometimes vignetting.  Its very pronounced at factory reset settings, but can be somewhat improved by turning off ALL the eco, dynamic, & auto settings switch to Movie instead of Standard, but its still there, just less often. 

 

I've spoke with a Samsung rep, and he asked me to email him my settings, and then some netflix examples of where its showing, which seems like a fools errand since it so easy to spot.  I was hoping that I just had a defective unit, but it seems fairly widespread from these comments and HDTVTests review.  If they can't solve it within my extended refund time, I'm returning it. 

 

I paid $5000CAD for this TV, this should not be happening.  This is my 4th Samsung TV..  If this is the state of their flagship product, I wonder if it will be my last?


Hello there

Thanks for your answer

 

I think the whole problem is firmware, the algorithm they use with the dimming. I tried switching off the local dimming (using service menu) and it worked but which many side effects (bleeding, blacks not deep, brightness to low in HDR...) But worked about the fluctuations

 

Please keep me updated, with the info Samsung will give you about the problem

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Hyperion
Asteroid

Re: Brightness changes with subtitles

Interesting, I don't have an 'Off' option for my Local Dimming, only 'Low', which I tried, and the issue still remains. For reference, I'm watching on XBoxOneX, Netflix - The Haunting of Hill House S1: E10 @ 5:58 when the car drives up in the darkness, there is plenty of this luminance fluctuation.
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userJHRNiUEfei
Constellation

Re: Brightness changes with subtitles

Hey there

 

Just to see my problem I have recorded a video

Is from Netflix HDR Daredevil. First episode about minute 2:00 to 4:30

 

https://www.youtube.com/watch?v=QQZ6qKw2D44

 

Do you notice? is very hard at this scene

Could you confirm the problem with your TV? thanks!

Look how the dimming of my tv works. Is it common or a faulty pannel?
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rshmn163
Astronaut

Re: Brightness changes with subtitles

Same issue here. I experience it when increasing the volume, Left side of the screen brightens up. Between this and the Samsung OneRemote not being able to control my Samsung HT system, I'm debating on whether or not to bring this back and try another brand.

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userI6OL6KL0Ju
Constellation

Re: Brightness changes with subtitles

Here is the problem on my Q7FN. Using Netflix's The Haunting of Hill House Ep 3 at the begining. Terrible!

 

https://www.youtube.com/watch?v=LxpsTIfBP8Q&feature=youtu.be

 

 

 

 

This video shows the terrible brightness increase in dark scenes whenever subtitle is displayed. This happens mainly in HDR content. Things tried (and didn't work): Local Dimming as Low, Turned off all ECO options. This is happening not only in Netflix. Any source, preferably HDR, with dark scenes
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userT3WBXHjcSP
Constellation

Re: Brightness changes with subtitles

I have the same problem with a 49NU8000. Just wow. Can't use subtitles, and it's also noticeable while gaming.

 

How could anyone miss this? I'll return it on Monday, as I have no intention of waiting for a firmware that might not come. 

 

What a joke.

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userQhnfeAQwaM
Constellation

Re: Brightness changes with subtitles

I bought a QE55Q8FNATXXH yesterday. I have the same problem.

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Hyperion
Asteroid

Re: Brightness changes with subtitles

A samsung rep came to my house, to see these luminance fluctuations which are made worse with sub-titles, which was nice service.  We started with a factory reset, and watching some dark scenes, and wow did it look terrible.  He agreed.  He adjusted settings and made it better, but its still there, and noticeable to me.    

 

He explained that ultimately, FALD (full array local dimming) with sub-title text on dark backgrounds, will always create bloom, and can only be improved upon with the addition of more dimming zones.  He mentioned the Q9FN has 10x the zones, so it can be more localized blooming, but it'll still happen.  I can understand that, but whats not acceptable to me is that this TVs local dimming algorithm is working in such a way to create luminance fluctuations.  

 

Due to this issue, and the very poor viewing angle, I'm returning it tomorrow, and am going to try the Sony x900F, I'll even get $1000CAD back, since the x900F is less expensive!

 

I wish OLED didn't burn in with video game HUDs..   Smiley Sad 

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userXlRyTs3mwq
Constellation

Re: Brightness changes with subtitles

Here's a solution:

 

On a PC browser, log into Netflix.

 

Go to subtitle preferences.

 

Choose "semi transparent" subtitles.

 

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