10-05-2020 11:59 PM - last edited 05-08-2020 05:09 PM
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:
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
18-08-2020 09:42 PM
I have the Q90T Europe modell and I dont have the dimming issue in any game motion settings, incl off.
Still have firmware version 1302 which resolved ghosting issue that I had before. Guess I should not update to 1304, which is available for install under the support tab?
19-08-2020 10:19 AM
With local dimming set to low the problem doesn't occur.
19-08-2020 01:58 PM
What is the screen size you have ?
Also do check with static content on screen for 6-7min with game motion OFF in HDR game-mode.
19-08-2020 09:12 PM - last edited 19-08-2020 09:13 PM
I have local dimming set on high, contrast enhancer on low in game mode. Still no dimming issue with GMP on or off.
Guess I stay on firmware 1302 for now!
19-08-2020 09:16 PM
I have the Q90T 55”.
20-08-2020 02:25 AM
Should probably make a separate thread for this, but I also noticed that a while back when playing Dark Souls III, and it went away when I turned off FreeSync. (I was on PC with Game mode.) Never seen anything like it before and would have sworn it wasn't there before. Think I had updated firmware, but this was way back on 1115 or something. Also noticed it recently just watching a video of Bloodborne; again, went away when I turned off FreeSync. Did you find out if this is 'inverse ghosting'? Would love to know if you figure out what's going on, and if it's a bad implementation of FreeSync/VRR.
20-08-2020 01:12 PM
The software I have is 1304, and I am experiencing the blackout / brightness decrease after a certain period of time. Why is it still not resolved when there is such a remarkable issue?
20-08-2020 02:05 PM
Keep everything default don't change anything related to brigthness change. And turn off game motion plus. 6-7min you'll see the dimming issue
20-08-2020 02:07 PM
guys come on everyone call samsung toll free service daily and push it up
21-08-2020 12:47 AM
Do this but also @ them on Twitter so it’s on display for other customers to see. If it’s on social media, it’s always easy to search for and they might need to address it quicker.