I have now been using my brand new 65" 2018 Q9FN for couple of weeks and only couple of days ago started to watch HDR content using the built in apps in the device. Almost immediately (especially when watching dark scenes of Ozark in Netflix) I noticed that there is something weird going on with every HDR content when the subtitles are enabled.
The problem is the following. Every time a subtitle appears on the screen, the device brightens up the details in the screen automatically as if it would try to automatically correct the brightness and contrast in the screen to match the bright light produced by the appearing subtitles. This is really annoying and makes watching of HDR content almost unwatchable. Non-HDR content does not have the same problem when subtitles are enabled and also if I turn off the subtitles completely the problem is gone also with HDR content. It should not however be the "fix" to just watch without subtitles as people including me do watch non-native content with subtitles.
Something I also tried to do was to set the colour of the subtitles to something else than white (currently yellow with black boxes around it) but the dynamic brightness / contrast adjustment is still there every time subtitles appear in the screen. Oh and just to be clear the latest firmware 1153 updated on 8 November.
I think there is also a similar kind of problem described in the topic linked below but I saw that discussion going nowhere so decided to open a new topic just for this problem:
https://eu.community.samsung.com/t5/TV-Audio-Video/Brand-new-55-Q9FN-terrible-panel-quality/td-p/577...
"...if there's some white/bright element either from the scene, or even external (volume display, subtitles, etc.) it seems to brighten that corner of the screen and suddenly you see all this detail in the scene"
Am I alone with this issue and is Samsung doing anything to correct this? I feel like I should be returning the device because I don't feel like a satisfied customer at the moment.
