2020 QLED T models (Q80T, Q90T, Q800T, Q900T) HDR game mode brightness / local dimming bug

[Rauttis]

I bought a Q80T a couple of days ago and have noticed a really annoying issue when using the tv with the combination of HDR and game mode.

I'm fairly certain this is a software bug in the TV since I can reproduce this issue with 100% accuracy, and it happens on the dot at the same moment every time. It's basically on a timer.

Basically when the game is displaying a HDR signal and game mode is enabled, exactly after 6 minutes the brightness of the TV suddenly drops by around 20 (50 -> 30). The value of brightness setting doesn't actually change however. Messing with the brightness setting does not restore the brightness to it's original state, but changing the local dimming setting from standard to low and then back to standard does. Switching game mode off and then back on also fixes the issue, but then it happens again EXACTLY after 6 minutes (I've timed this with a stopwatch).

Has anyone else experienced this issue? Or can someone maybe test this on their TV to see if you can reproduce it?

Exact repro steps on how I can reproduce this 100% of the time on the PS4 Pro:

1. Set brightness to max (50)
2. Set local dimming to standard (bug happens on high as well)
3. Enable game mode
4. Turn off game motion plus
5. Turn off intelligent mode and all the brightness related settings in eco settings, as these can influence the brightness level of the tv.
6. Launch a game that runs in HDR
7. Start your stopwatch
8. Do whatever you want in the game or you can also go back to PS4 menus, find a bright scene where you can notice a brightness drop easily
9. When the stopwatch hits 6 minutes, you should see the TVs brightness suddenly drop by a large amount. By eye the brightness drop seems about equal to dropping the brightness from 50 -> 30 by hand.
10. Go to picture settings and set local dimming to low (brightness does not change)
11. Set local dimming back to standard (brightness suddenly jumps to the original level. Brightness can be restored by switching input away and back as well, or by disabling and re-enabling game mode)
12. And again after EXACTLY 6 minutes the bug again repeats and the brightness drops down again

Some other notes: The PS4 has a screensaver that basically dims the screen if it is idle for a while. This is not the cause of this, this happens even when the console is in active use and the brightness can be restored temporarily by changing the local dimming setting like described above. I have not managed to reproduce this issue with game mode off, so it seems to be related to game mode.

Software version: 1304

[jayh89]

I just got this email... showing that @QuantumP IS @Suríya!! Suriya has 2 accounts and switches between them. They messed up and signed in as AV2020 then deleted their post.  What the hell?! 

 

[Mordechai]

Wow this is something 😂

Please, for the love of god and your warranty, only install updates when your TV prompts you to do so or they are listed on Samsungs official site. Do not install something, someone received „personally“ from a technician that demands a „donation“. This sounds so absolutely deranged... 

[HQboy]

The situation was complicated. I installed it, thank God that it didn't give any problem, and from what I could see ... everything that was added and corrected in the US version is present. I don't know where he got the file, sometimes he himself is a samsung employee trying to get some extra money, I don't know. But that the firmware was true that was, I can even record a video if you want.

[Suriya]

AV2020 is spamming my account by posting donation links and some unwanted topics with using my profile picture and my email address.

My original profile has "Navigator" badge.

That AV2020 spammed one has "Newmember" badge moderator should ban him.

He is the one spamming this topic with my profile picture duplications.

[Suriya]

Dude I'm just a normal guy. Pls check Navigator badge before replying the topic. @QuantumP is using my profile picture and name to spam everywhere from the beginning. Reported to mods @AntS 

[Keitoki]

@QuantumP man, don't be toxic like that, just ignore him, if you don't like him...

[Suriya]

Pls all report @QuantumP he is spamming this topic with my account details and he himself  reply to his own spam account created using my identity. Then reporting my origanl account to moderaters.

Check for "Navigator" badge that is my original account.

The other one with donation link is spam account with "Newmember" badge newly created using my identity by @QuantumP 

[8bit]

"1402.1 is us version 

1402.7 is eu version 

Both are same"

Is this true? I don't remember updating my TV, unless it does it while off?

[jayh89]

So why is this reply (eeenpuc) exactly like the reply you sent a little while ago? Very sinila r language used. End of the day, nobody donate money. Wait on the update. End of. 

[Suriya]

AV2020 has two accounts the other one using my identity created to spam