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
08-10-2020 09:50 PM
Friend, very calm in what you say. In my country (Brazil) it came out at 1402.7. File exactly identical to what he made available to us.
08-10-2020 10:05 PM
Friend, can you share your settings in game mode please?
08-10-2020 10:41 PM
I don't believe there is a correct setting. Just play with it and get it how you want.
08-10-2020 11:01 PM
I liked your results. Couldn't you share it with us?
08-10-2020 11:08 PM
So you prefer GMP on? Interesting. I find it hard to see differences but I can’t say I’ve investigated enough. Could you share your game mode settings out of curiosity?
08-10-2020 11:48 PM - last edited 09-10-2020 10:50 AM
Removed picture settings
08-10-2020 11:49 PM
Is local dimming working perfectly with GMP OFF, as it was before the 1304 update? What version did you install on your TV, 1402.6 or 1402.7? Because the firmware that Suriya made available did not correct the local dimming with GMP OFF !!
08-10-2020 11:52 PM
Pelas fotos que o soccercrazy1 disponibilizou na dele o local dimming com o GMP desativado esta funcionando como era antes da 1304
09-10-2020 12:53 AM - last edited 09-10-2020 12:55 AM
I'm guessing most people on here have PS4 because Xbox freesync HDR is so dark it's unplayable,I keep mine on GMP with judder notch to 1 to bring colour back ,hgig is on , earlier it looked to dark but my contrast was set wrong ,but GMP off I get faint scrolling upward lines in dash which is really annoying to me,changed cable ,changed input hdmi socket,same happening on 1304 and 1402 for me,tried console on another TV it doesn't do it do definitely issues with GMP or freesync HDR ,but dimming is not present for me on console in UK ,other issues are probably worse
09-10-2020 12:56 AM
I have 1402.1 in the US and I downloaded it from Samsung website. I only had 1304 when I bought the tv. I have not seen the previous versions. The comparisons you have seen are 1304 and 1402.1