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
14-10-2020 10:40 PM - last edited 14-10-2020 10:44 PM
Don't listen to this troll Supriya,vrr has faint scrolling horizontal lines and dark like horrible dark ,and GMP disabled the same faint lines but not dark,this messes up hgig aswell as local dimming and as I have 1402.6,others have 1402.7 and site says 1402.1 I'm not surprised there's issues.
14-10-2020 10:42 PM
No PS4 aswell
14-10-2020 11:42 PM
No PS4 what?
14-10-2020 11:51 PM
I was replying to someone else about the horizontal lines and dark vrr on PS4 and Xbox ,not just Xbox
14-10-2020 11:57 PM
That`s true, I have PS4 Pro and I too get scrolling horizontal lines with GMP off. Really interested to see how everything works with PS5 or Xbox Series X with 120hz VRR Input.
15-10-2020 12:23 AM
I'm definitely holding off until they've been tested.
15-10-2020 12:46 AM
Can confirm horizontal lines scrolling from bottom to top on low light scenes. Looks like an old fashioned signal issue on analog displays, which obviously cannot be the case. Wonder if it will ever be fixed, or what else will be broken in the process.
it’s incredible, how long has Samsung been building tv’ for?
15-10-2020 06:12 AM
I'm running firmware 1402.6 and use Xbox One X with vrr. I can't see scrolling lines but on certain parts of the game, I can see faint pulsing. Is this the issue? Like it is running something in the picture background to keep the frame rate smooth.
15-10-2020 08:44 AM
That @AV2020 is trolling everyone on this thread lol... for past few days i didn't reply or post anything here. He's replying to everyone with my fake profile lol... 🙂
Seriously i have no idea... AV2020 the real troll ever
15-10-2020 05:24 PM
I'm getting a hate from samsung! Launching an update apparently fixes one thing and makes it worse and simply ignores fixing another (such as the case of local dimming) 😡😡