Close

What are you looking for?

cancel
Showing results for 
Search instead for 
Did you mean: 

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

(Topic created on: 08-07-2020 09:06 AM)
3281 Views
Rauttis
Explorer
Options

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

2,028 REPLIES 2,028
jayh89
Helping Hand
Options
I’d like to think they’ll have this sorted by the time new consoles come out. Surely!! 😖
0 Likes
LCDeez
Navigator
Options

I really hope so, they're toast if they don't. You'll get pretty much every gamer returning their Q80 - Q90 in the first few weeks if it isn't fixed. 

jayh89
Helping Hand
Options
I hope with them being aware of the issue now and they have a link to this forum, that they’ll fix ASAP. Within weeks, I pray!
0 Likes
LCDeez
Navigator
Options

Not able to try this myself at the moment but would someone be willing to turn the local dimming on low and turn off game motion? Curious to see if this is a potential fix. 

0 Likes
jayh89
Helping Hand
Options
I use low and game motion off and it still happens. Those are my “default” game mode settings.
0 Likes
Iskandarkebab
Pioneer
Options

Do you know if they can do some kind of remote setup with service menu to adjust settings without update? Because i have played two different days since tuesday and It seems the bug is not happening anymore

0 Likes
jayh89
Helping Hand
Options
They can remotely access the service menu yeh but only if you allow them in. I played today and still have the issue. I also messaged the mod and he said they are still figuring it out.
0 Likes
Suriya
Voyager
Options

Guys anyone help me with this pls. Couldn’t play HDR without setting this up it's become oversaturated.

 

PS4 Pro "Adjust HDR" Settings blown out to max automatically When trying to adjust HDR sliders in ps4 pro its blows up automatically without adjusting the sliders manually. couldn’t apply proper visibility.

Tried local dimming off, contrast enhacer off, out side game mode, movie mode with default, LD off, CE off, different hdmi ports/cable nothing worked pls help me with this.

TV : 55Q95T

0 Likes
Suriya
Voyager
Options

Maybe they reset everything to factory defaults which enables game motion plus. Try turning it off and play for 15min again you'll notice brightness dropping. Turning on game motion plus is the temporary fix for the brightness dim.

0 Likes
Suriya
Voyager
Options
Maybe they reset everything to factory defaults which enables game motion plus. Try turning it off and play for 15min again you'll notice brightness dropping. Turning on game motion plus is the temporary fix for the brightness dim.
0 Likes